In the 1st season, the show primarily used Premiere Edition 1, Edge Edition 1 and Series 6000 effects. Then, in the 2nd season, the show started using other libraries such as Hanna-Barbera, Warner Bros., among others.
- Cuica 02 (Heard once in "The Muckster", "The Cat in the Hat's Big Birthday Surprise" and "The Sounds All Around".)
- Elektra Records, Overstuffed Closet - Contents Crash To Floor (Heard once in "The Cat in the Hat Cleans Up His Act".)
- H-B ZIP, CARTOON - LOW WHISTLE ZING OUT (Heard once in "The Cat in the Hat Cleans Up His Act".)
- Hollywoodedge, Alarm 3 Interior Subm TE012201
- Hollywoodedge, Alarm 4 Contemporary TE012301
- Hollywoodedge, Bang Whonk CRT032404
- Hollywoodedge, Bird Atmospheres Jun TE013601
- Hollywoodedge, Bird Chirp Close Dis PE010401
- Hollywoodedge, Boings For Impacts CRT016701 (4th boing; heard once in "The Feed You Need" and "Walkin' with the Cat".)
- Hollywoodedge, Bounce Jews Harp CRT015806
- Hollywoodedge, Bubble Pop CRT049201 (Heard once in the Season 1 intro; also used in some episodes such as "Who Are You, Sue Snue?".)
- Hollywoodedge, Bubble Pop CRT049202 (Heard once in "The Cat in the Hat Takes a Nap".)
- Hollywoodedge, Bubbles Gurgling Up PE052701 (Heard once in "The Gink".)
- Hollywoodedge, Car Tire Squeal Short PE074301
- Hollywoodedge, Cartoon Boings 1 Shor TE021101
- Hollywoodedge, Cartoon Boings 2 SS016102 (Heard once in "The Gink".)
- Hollywoodedge, Cartoon Boings Long TE021102
- Hollywoodedge, Cartoon Twangs 1 Low TE021001 (Heard once in "The King's Beard".)
- Hollywoodedge, Cartoon Twangs High TE021002
- Hollywoodedge, Cartoon Zooms Variou TE021201 (Heard once in "The Gink".)
- Hollywoodedge, Cash Registers Drawe TE021802
- Hollywoodedge, Comedy Body Fall Msx CRT017301
- Hollywoodedge, Debris Crash Crashes TE023201
- Hollywoodedge, Door Bells Multiple B TE018702
- Hollywoodedge, Door Creaks Medium Pe TE023601
- Hollywoodedge, Elephant Single Clas AT043701 (Heard twice in "The Sounds All Around".)
- Hollywoodedge, Elephant Single Clas AT043801 (Heard once in "The Sounds All Around".)
- Hollywoodedge, Elephant Single Clas AT043901 (Heard once in "The Sounds All Around".)
- Hollywoodedge, Elephant Single Trum AT043404 (Heard once in "The Sounds All Around".)
- Hollywoodedge, Forest Mountain Echo BT021001 (Heard once in "A Bird's Best Friend".)
- Hollywoodedge, Funny Engine DyingW CRT055603 (Heard in Season 2 episodes along with CRT055601 when the Cat in the Hat is cranking the Wubbuloscope.)
- Hollywoodedge, Funny Engine Steady CRT034902 (Used in Season 2 episodes when the Cat in the Hat is cranking the Wubbuloscope.)
- Hollywoodedge, Funny Engine Steady CRT035401 (Heard once in "The Cat in the Hat Cleans Up His Act", "The Sounds All Around" and "The Cat in the Hat's Flower Power".)
- Hollywoodedge, Funny Hollow Tic Toc CRT036601 (Heard in Season 2 episodes to accent a clock.)
- Hollywoodedge, Funny Motor Chugs CRT055601 (Heard in Season 2 episodes along with CRT055603 when the Cat in the Hat is cranking the Wubbuloscope.)
- Hollywoodedge, Gusts Heavy Cold Wind PE031601 (Heard once in "The Cat in the Hat's First-First Day", "The Sounds All Around", "Make Yourself at Home", "Cat's Play", "The Cat in the Hat's Flower Power" and "The Cat in the Hat Gets a Package".)
- Hollywoodedge, Head Bonk Wbell Drum CRT031901
- Hollywoodedge, Head Bonk Wcymbal Cr CRT033004
- Hollywoodedge, Head Bonk Whorn 3 Typ CRT032401
- Hollywoodedge, High Pitched Desk Bel PE191901 (Heard once in "Oh, the People You'll Meet!".)
- Hollywoodedge, Home Doorbell Classi PE192101 (Heard once in "The Cat in the Hat Takes a Nap", "Lester Leaps In" and "The Cat in the Hat Gets a Package".)
- Hollywoodedge, Jungle Ambiencespe PE010801 (Heard once in "Cat's Play".)
- Hollywoodedge, Kick Body Hit 4 Thud Cr PE101601 (Heard in "Horton Has a Hit".)
- Hollywoodedge, Large Splash Or DiveW PE127101
- Hollywoodedge, Long Slow MetallicR CRT038602 (Heard in season 2 episodes when the Cat is given a story.)
- Hollywoodedge, Low Pitched Squeak CRT049301
- Hollywoodedge, Metallic Clicks Rap CRT038103 (Heard in Season 2 episodes to accent gears.)
- Hollywoodedge, Metallic Swish Hvy CRT054701 (Heard once in "The Sounds All Around".)
- Hollywoodedge, Musical Boing Metlc CRT016302 (Heard in Season 2 episodes to accent a jack-in-the-box. It is intact on all Nick Jr. airings of the show and current prints of season 2, including those on the Jim Henson Family Channel.)
- Hollywoodedge, Night Ambience Calm PE011801
- Hollywoodedge, Office Interior Mach TE038401
- Hollywoodedge, Old Car Horns Single CRT021302
- Hollywoodedge, Owl Great Horned Hoot AT083001 (Heard once in "The Cat in the Hat Takes a Nap".)
- Hollywoodedge, Parrot Squawks Inter TE013301 (Heard once in "The Gink" (used on an eagle) and "The Mystery of Winna-Bango Falls".)
- Hollywoodedge, Quick Musical Gliss CRT048402 (Heard once in "There's Nothing To Fear in Here".)
- Hollywoodedge, Quick Whistle Zip By CRT057501
- Hollywoodedge, Rapid Jerky Creaks CRT052902 (Heard once in "Walkin' with the Cat".)
- Hollywoodedge, Ricochets Various TE029902 (Heard once in "Oh, the People You'll Meet!".)
- Hollywoodedge, Rooster Crows Classi TE013401 (Heard once in "The Gink".)
- Hollywoodedge, Rope Snap Swish 1 SS011001 (Creaking only; heard once in the Season 1 intro.)
- Hollywoodedge, Rope Snap Swish 3 SS011003 (Heard repeatedly in "The Gink".)
- Hollywoodedge, Short Bulb Horn Honk CRT020701 (Heard once in "The Cat in the Hat Takes a Nap", "There is Nothing to Fear in Here", and "The Cat in the Hat Cleans Up His Act".)
- Hollywoodedge, Slide Whistle High Wa TE021603
- Hollywoodedge, Slide Whistle Warbli TE021601
- Hollywoodedge, Slide Whistle Warbli TE021602 (Heard once in "The Gink" and "The Guest".)
- Hollywoodedge, Squeaky Old Wood Scre PE182001 (Heard twice in the Season 1 intro.)
- Hollywoodedge, Synthy Low Pit Boing CRT016105 (Heard 36 times in "The Cat in the Hat Cleans Up His Act", 11 times in "Walkin' with the Cat" and once in "A Bird's Guide to Health" and "The Cat in the Hat Gets a Package".)
- Hollywoodedge, Thunder Dry Rumbles PE050901 (Heard once in "The Cat in the Hat's Indoor Picnic", "The Sounds All Around" and "There's Nothing To Fear in Here".)
- Hollywoodedge, Tumble Boing CRT017306 (Heard once in "The Cat in the Hat Cleans Up His Act", "The Cat in the Hat's Indoor Picnic" and "A Bird's Best Friend".)
- Hollywoodedge, Twangy Boingohyoyo CRT016203 (Heard once in "The Cat in the Hat's Big Birthday Surprise", "The Sounds All Around" and "A Bird's Guide to Health".)
- Hollywoodedge, Twangy Boings 7 Type CRT015901 (3rd boing; heard once in a low pitch in "Talkin' with the Cat".)
- Hollywoodedge, Whistle Wbulb Horn CRT020801
- Hollywoodedge, Whistley Whirl Wjew CRT017601
- Hollywoodedge, Whistling Wind Mediu PE032901
- Hollywoodedge, Wubble Wobble Spring PE940704/OMI, Cartoon FX - Warble (Heard once in a low pitch in "The Cat in the Hat's Indoor Picnic".)
- Prosonus Muted Trombone Sound
- PSEL, BI Forest Birds 1
- PSEL, IN Cricket Single/Sound Ideas, Animals - One cricket chirping 02
- Sound Ideas, AIRPLANE, JET - LEAR: EXTERNAL: PASS BY 01 (Heard once in "The Gink".)
- Sound Ideas, ANIMAL, BATS - LARGE GROUP SQUEAKING
- Sound Ideas, ANIMAL, BEE - SINGLE BEE BUZZING IN JAR, INSECT
- Sound Ideas, ANIMAL, BIRDS - VARIOUS BIRDS CHIRPING (Heard once in "The Gink" and "Norval the Great".)
- Sound Ideas, ANIMAL, MONKEY - VARIOUS SCREAMS, APE (Heard once in "The Gink".)
- Sound Ideas, APPLAUSE - INDOOR: MEDIUM CROWD IN THEATER, AUDIENCE, THEATRE 04
- Sound Ideas, APPLAUSE, CHEERING - OUTDOOR: STADIUM, LARGE CROWD, APPLAUSE, CHEERING 05 (Heard twice in "Talkin' With The Cat".)
- Sound Ideas, BELL, CHURCH - SINGLE CHURCH BELL TOLLING
- Sound Ideas, BELL, DESK - DESK BELL: SINGLE RING (Heard in "The Guest".)
- Sound Ideas, BELL, HAND - LARGE BRASS BELL: SINGLE RING
- Sound Ideas, BELL TREE - ASCENDING SHORT, MUSIC, PERCUSSION
- Sound Ideas, BELL TREE - RAIN DROPS, MUSIC, PERCUSSION
- Sound Ideas, BIRD, FARM CHICKENS - AMBIENCE: FARM CHICKENS 01 (Heard once in "The Mystery of Winna-Bango Falls".)
- Sound Ideas, BIRD, LOON - COMMON LOON: SINGLE CALL, ANIMAL 01
- Sound Ideas, BIRD, LOON - COMMON LOON: SINGLE CALL, ANIMAL 02
- Sound Ideas, BIRD, OWL - CALLING, ANIMAL 01
- Sound Ideas, BIRD, OWL - SINGLE OWL HOOTING, ANIMAL (Heard once in "The Gink", "The Cat in the Hat's Flower Power" and "A Bird's Best Friend".)
- Sound Ideas, BITE, CARTOON - BIG CHOMP
- Sound Ideas, BOING, CARTOON - BIG, LONG BOING (Heard in Season 2 when the Cat is given the summary to a story from Seussville, the Jungle of Nool, or the Kingdom of Didd; mixed with BOINK, CARTOON - BOINK 01 and Long Slow MetallicR CRT038602.)
- Sound Ideas, BOING, CARTOON - BOING AND SPRING (Heard once in "The Cat in the Hat's First-First Day" and "The Cat in the Hat Gets a Package".)
- Sound Ideas, BOING, CARTOON - BOINK AND WIGGLE (Heard once in "The Cat's Play" and "There is Nothing to Fear in Here".)
- Sound Ideas, BOING, CARTOON - BOWANG (Heard once in "The Cat in the Hat Builds a Door-a-Matic".)
- Sound Ideas, BOING, CARTOON - BROKEN SPROING (Heard once in "The Cat in the Hat Takes a Nap" and "Walkin' with the Cat".)
- Sound Ideas, BOING, CARTOON - FLAT JEWS HARP BOING (Heard once in "There is Nothing to Fear in Here".)
- Sound Ideas, BOING, CARTOON - GOOD SPRONG 01 (Heard once in "The Cat in the Hat's Big Birthday Surprise".)
- Sound Ideas, BOING, CARTOON - HOYT'S BOING (Heard once in "There is Nothing to Fear in Here", "The Cat in the Hat's First-First Day", "The Feed You Need", "Talkin' with the Cat" and "The Cat in the Hat Gets a Package".)
- Sound Ideas, BOING, CARTOON - RIPPLE BOING (Heard once in "There is Nothing to Fear in Here" and "Cat's Play".)
- Sound Ideas, BOING, CARTOON - SPROING 01 (Heard once in "There is Nothing to Fear in Here", "The Cat in the Hat Cleans Up His Act" and "The Cat in the Hat Gets a Package". It also accents a jack-in-the-box in some Season 2 episodes instead of Hollywoodedge, Musical Boing Metlc CRT016302.)
- Sound Ideas, BOINK, CARTOON - BOINK 01 (Heard in Season 2 when the Cat is given the summary to a story from Seussville, the Jungle of Nool, or the Kingdom of Didd; mixed with BOING, CARTOON - BIG, LONG BOING and Long Slow MetallicR CRT038602.)
- Sound Ideas, BOINK, CARTOON - DOINK 01 (Heard once in "Walkin' with the Cat".)
- Sound Ideas, BOINK, CARTOON - HOYT'S BOINK (Heard once in "The Cat in the Hat Takes a Nap".)
- Sound Ideas, BOINK, CARTOON - TIMP DOINK
- Sound Ideas, BORK, CARTOON - LOUD ZORK (Heard once in a quadruple low pitch in "The Gink".)
- Sound Ideas, BOX, CARDBOARD - CARDBOARD BOX FALLING ON GROUND 01 (Heard once in "Almost There" and "Max the Hero".)
- Sound Ideas, BUBBLES, MUD - THICK, GLOPPY MUD BUBBLES, BOIL
- Sound Ideas, CAMERA - 35 MM SLR WITH AUTO WINDER: SINGLE SHOT (Heard once in "Oh, the People You'll Meet!".)
- Sound Ideas, CARTOON, ACCENT - WHIZ, BONKS
- Sound Ideas, CARTOON, BOINK - VOCAL BOINK (Heard twice in "The Sounds All Around".)
- Sound Ideas, CARTOON, CRASH - LARGE JUNK CRASH 01 (Heard once in "The Cat in the Hat Cleans Up His Act".)
- Sound Ideas, CARTOON, SLIDE - MEDIUM VIOLIN SLIDE DOWN
- Sound Ideas, CARTOON, SNORE - LOUD SNORING AND BREATHING, HUMAN (Heard once in "The Cat in the Hat Takes a Nap".)
- Sound Ideas, CARTOON, SQUEAK - SEVERAL RUBBER SQUEAKS, STRETCH
- Sound Ideas, CARTOON, TWANG - WOBBLING TWANG
- Sound Ideas, CARTOON, WARBLE - WARBLE SHEET
- Sound Ideas, CARTOON, WHISTLE - SLIDE WHISTLE: FAST SLIDE UP, ZIP 01 (Heard multiple times in "The Cat in the Hat Takes a Nap" and once in "The Cat in the Hat Cleans Up His Act" and "The Cat in the Hat Gets a Package".)
- Sound Ideas, CARTOON, WHISTLE - SLIDE WHISTLE: FAST ZIP DOWN (Heard once in "Walkin' with the Cat".)
- Sound Ideas, CARTOON, WHISTLE - SLIDE WHISTLE: FAST ZIP UP (Heard once in "The Cat in the Hat's Big Birthday Surprise" and "Walkin' with the Cat".)
- Sound Ideas, CARTOON, WHISTLE - SLIDE WHISTLE: LONG SLIDE DOWN, ZIP (Heard once in "There is Nothing to Fear in Here".)
- Sound Ideas, CARTOON, WHISTLE - SLIDE WHISTLE: LONG SLOW WARBLE DOWN (Heard once in "Cat's Play".)
- Sound Ideas, CARTOON, WHISTLE - SLIDE WHISTLE: ZIP DOWN 01 (Heard once in "The Cat in the Hat Takes a Nap" and "The Cat in the Hat's Big Birthday Surprise".)
- Sound Ideas, CARTOON, WHISTLE - ZING WHISTLE, MEDIUM 04 (Heard once in a high pitch in "The Gink".)
- Sound Ideas, CARTOON, WHIZZ - FAST WHIZZ BY
- Sound Ideas, CARTOON, ZIP - LONG 01 (Heard once in "The Cat in the Hat Cleans Up His Act".)
- Sound Ideas, CARTOON, ZIP - LONG 04 (Heard once in "The Cat in the Hat Cleans Up His Act".)
- Sound Ideas, CARTOON, ZIP - MEDIUM 04 (Heard once in "There is Nothing to Fear in Here".)
- Sound Ideas, CARTOON, ZIP - SHORT 01 (Heard once in "The Cat in the Hat Cleans Up His Act".)
- Sound Ideas, CARTOON, ZIP - SHORT 06 (Heard once in "There is Nothing to Fear in Here".)
- Sound Ideas, CARTOON, ZIP - SHORT 07 (Heard once in "The Cat in the Hat Cleans Up His Act", "A Bird's Best Friend" and "There is Nothing to Fear in Here".)
- Sound Ideas, CARTOON, ZIP - ZING, HIGH 01 (Heard once in "The Cat in the Hat Cleans Up His Act".)
- Sound Ideas, CARTOON, ZIP - ZING, HIGH 02 (Heard once in "The Feed You Need".)
- Sound Ideas, CARTOON, ZIP - ZING, LOW 01 (Heard once in "A Bird's Guide to Health".)
- Sound Ideas, CHEERING, CROWD - OUTDOOR: LARGE CONCERT CROWD, AUDIENCE 01 (Heard twice in "The King's Beard" and heard once in "Horton Has a Hit".)
- Sound Ideas, CHEERING, CROWD - OUTDOOR: SMALL GROUP, AUDIENCE
- Sound Ideas, CLOCK, ALARM - LARGE ALARM CLOCK: BELL RINGING
- Sound Ideas, CLOCK, CUCKOO - STRIKE ONE O'CLOCK (Heard once in "The Cat in the Hat Cleans Up His Act".)
- Sound Ideas, COMEDY - LICKING (Heard once in "The Cat in the Hat's Big Birthday Surprise".)
- Sound Ideas, COMEDY - SLIDE WHISTLE UP (Heard once in a slow speed in "The Cat in the Hat's Flower Power".)
- Sound Ideas, COMEDY, ACCENT - STUMBLE AND FALL
- Sound Ideas, CRASH, CARTOON - CRAZY BASS DRUM AND CYMBAL CRASH, MUSIC, PERCUSSION 01 (Heard once in "The Sounds All Around" and "The Cat in the Hat's Indoor Picnic".)
- Sound Ideas, CRASH, CARTOON - KEN'S BASS, DRUM AND CYMBAL CRASH, MUSIC, PERCUSSION (Heard once in "The Cat in the Hat Cleans Up His Act".)
- Sound Ideas, CRASH, CARTOON - SOLID BASS, DRUM AND CYMBAL CRASH, MUSIC, PERCUSSION 01 (Heard once in "The Cat in the Hat's Flower Power".)
- Sound Ideas, CRASH, METAL - LARGE METAL CRASH 03 (Series 6000)
- Sound Ideas, CRASH, METAL - MEDICAL INSTRUMENT CARTS CRASH TOGETHER 01
- Sound Ideas, CRASH, METAL - SMALL METAL PIECES DROPPING (Heard once in "The Gink" and "Max the Hero".)
- Sound Ideas, CRASH, METAL - VARIOUS METAL PIECES DROPPING
- Sound Ideas, CRICKET - CRICKETS, INSECT, DIGIFFECTS 01 (Heard in "The Cat in the Hat Takes a Nap" and "The Cat in the Hat's First-First Day".)
- Sound Ideas, DOOR, WOOD - OPEN 02 (H-B)
- Sound Ideas, ELECTRICITY, SPARK - HIGH VOLTAGE SPARK, ELECTRICAL 01 (Heard twice in "Almost There".)
- Sound Ideas, ELECTRONIC - MAGICAL APPEARANCE 01
- Sound Ideas, ELECTRONIC - MAGICAL POOF 01
- Sound Ideas, ELECTRONIC - MAGICAL POOF 02 (Heard once in "Oh, the People You'll Meet!".)
- Sound Ideas, ELECTRONIC - MAGICAL SWISH 03 (Heard once in "Oh, the People You'll Meet!".)
- Sound Ideas, FALL, BODY - HEAVY, DULL BODY FALL, HUMAN (Heard once in "The Feed You Need" and "Walkin' with the Cat".)
- Sound Ideas, FALL, CARTOON - BAMBOO FALL (Heard once in "The Cat in the Hat Cleans Up His Act".)
- Sound Ideas, FALL, CARTOON - TIMP AND BLOCK FALL/Sound Ideas, HIT, CARTOON - LOW DULL HITS (Heard once in "The Cat in the Hat Cleans Up His Act".)
- Sound Ideas, FLAG - FLAPPING IN WIND (Heard once in "Norval the Great".)
- Sound Ideas, FLY - SINGLE FLY BUZZING, ANIMAL, INSECT (H-B) (Heard once in "Cat's Play".)
- Sound Ideas, FOOD, CEREAL - POUR CEREAL INTO BOWL, FAST (Heard once in "The Cat in the Hat's Big Birthday Surprise".)
- Sound Ideas, FOREST, AFRICA - AFRICA: DAYTIME AMBIENCE, BIRDS, INSECTS
- Sound Ideas, FOREST, FRANCE - FRANCE: DAYTIME AMBIENCE, BIRDS
- Sound Ideas, FOREST, VENEZUELA - VENEZUELA: DAYTIME AMBIENCE, BIRDS, INSECTS 01
- Sound Ideas, FROG - NIGHT TIME AMBIENCE, ANIMAL, AMPHIBIAN
- Sound Ideas, HARP - CHORDAL GLISS, UP, MUSIC (Heard once in "The Cat in the Hat's Flower Power".)
- Sound Ideas, HIT, CARTOON - BIG HEAD BONK (Heard once in "The Cat in the Hat Builds a Door-a-Matic".)
- Sound Ideas, HIT, CARTOON - BRAKE DRUM AND BULB HORN HIT
- Sound Ideas, HIT, CARTOON - COCONUT HIT 01 (Heard once in "The Cat in the Hat Gets a Package" and "The Cat in the Hat Builds a Door-a-Matic".)
- Sound Ideas, HIT, CARTOON - COCONUT HIT 02 (Heard once in "The Cat in the Hat's Big Birthday Surprise" and "The Cat in the Hat Gets a Package".)
- Sound Ideas, HIT, CARTOON - HOLLOW METALLIC HEAD KONK AND HORN
- Sound Ideas, HIT, CARTOON - KABLAM (Heard once in "Lester Leaps In".)
- Sound Ideas, HIT, CARTOON - ZIP AND HEAVY THUMP
- Sound Ideas, HORN, BICYCLE - BULB HORN: SINGLE HONK, TOY (Heard in Season 2 episodes to accent a truck.)
- Sound Ideas, HORN, CARTOON - KAZOO PARTY HORN (Heard once in "The Cat in the Hat's Big Birthday Surprise".)
- Sound Ideas, HUMAN, EATING - APPLE: MEDIUM BITE, FOOD (Heard once in "The Cat in the Hat's Flower Power".)
- Sound Ideas, JUNGLE, AFRICA - AFRICA: MORNING AMBIENCE, BIRDS 03
- Sound Ideas, JUNGLE, SOUTH AMERICA - SOUTH AMERICA: DAYTIME AMBIENCE, BIRDS, CLOSE UP 02
- Sound Ideas, LION - ROARING, ANIMAL, CAT
- Sound Ideas, LION - TWO LIONS ROARING, ANIMAL, CAT
- Sound Ideas, MAGIC - BABOO ZIP DOWN (Heard once in "The Cat in the Hat Cleans Up His Act".)
- Sound Ideas, MAGIC - GLASS CHIMES RIPPLE/Sound Ideas, RIPPLE, CARTOON - DREAMY VIBRAPHONE GLISSANDOS, MUSIC, PERCUSSION, VIBES (Heard once in "The Cat in the Hat Gets a Package".)
- Sound Ideas, MAIL BOX, METAL - OPEN LID, LETTER, POST
- Sound Ideas, PINBALL - PINBALL MACHINE: LONG PLAY, ARCADE
- Sound Ideas, PLINK, CARTOON - SOUR PLINK (Heard once in "The Cat In The Hat's Indoor Picnic".)
- Sound Ideas, PLUCK, CARTOON - VAROOP (Heard once in "A Bird's Best Friend" and "There is Nothing to Fear in Here".)
- Sound Ideas, POP, CARTOON - HOYT'S POP (Heard twice in "The Cat in the Hat's Flower Power".)
- Sound Ideas, POP, CARTOON - SQUISH POP (Heard once in "There is Nothing to Fear in Here".)
- Sound Ideas, RATCHET, CARTOON - LIGHT RATCHET (Heard when the Cat cranks up the Wubbuloscope.)
- Sound Ideas, RICOCHET - CARTOON RICCO 02 (Heard once in "The Cat In The Hat's Indoor Picnic" and "The Cat in the Hat Cleans Up His Act".)
- Sound Ideas, RICOCHET - CARTOON RICCO 04 (Heard once in "The Cat in the Hat Cleans Up His Act", "Make Yourself at Home" and "Lester Leaps In".)
- Sound Ideas, RICOCHET - CARTOON RICCO 05 (Heard once in "The Cat in the Hat Cleans Up His Act".)
- Sound Ideas, RUN, CARTOON - TEMPLE BLOCK RIOT, SHORT
- Sound Ideas, RURAL ATMOSPHERES - VILLAGE: LATE SPRING, EVENING WITH BLACKBIRD, WREN, ROOKS, CHAFFINCH, WOODPIGEON AND DISTANT DOG. CORNWALL - MAY 85 (Heard once in "The Cat in the Hat Cleans Up His Act", "The Sounds All Around" and "Make Yourself at Home".)
- Sound Ideas, SAW, HAND - CROSS-CUT SAW: SAWING PLANK, CONSTRUCTION 02 (Heard once in "Max the Hero".)
- Sound Ideas, SCI FI - BRAINIAC/Sound Ideas, SCI FI - JEFF'S SPACE EFFECT 01 (Heard once in a low pitch in "Talkin' with the Cat".)
- Sound Ideas, SCI FI - WEIRD FALL, REVERSE/Sound Ideas, STRETCH, CARTOON - PLASTIC MAN STRETCH, FORWARD (Heard once in "The Cat in the Hat's Flower Power".)
- Sound Ideas, SKID, CARTOON - BROKEN SKID
- Sound Ideas, SLIDE, CARTOON - FIDDLE SLIDE DOWN 01 (Heard once in "The Cat in the Hat Takes a Nap", "The Cat in the Hat's Big Birthday Surprise", "Walkin' with the Cat", "A Bird's Guide to Health" and "The Cat in the Hat Gets a Package".)
- Sound Ideas, SLIDE, CARTOON - FIDDLE SLIDE DOWN 02 (Heard once in "A Bird's Best Friend".)
- Sound Ideas, SLIDE, CARTOON - FIDDLE SLIDE UP 02 (Heard once in "The Feed You Need".)
- Sound Ideas, SLIDE, CARTOON - FIDDLE SLIDE UP, LONG (Heard once in "The Cat in the Hat's Flower Power".)
- Sound Ideas, SLIDE, CARTOON - FIDDLE SLIDE UP, SHORT 02
- Sound Ideas, SPACE, COMPUTER - SPACE SHIP CONSOLE: BEEP, ELECTRONIC, SCI FI 02 (Heard twice in "Almost There".)
- Sound Ideas, SPACE, DOOR - SPACE SHIP DOOR 1, SCI FI
- Sound Ideas, SPACE, DOOR - SPACE SHIP DOOR 3, CLOSE, SCI FI 01
- Sound Ideas, SPIN, CARTOON - BABOO LONG DRUM SPIN (Heard once in "The Cat in the Hat's Flower Power" and "The Cat in the Hat Gets a Package".)
- Sound Ideas, SPIN, CARTOON - SPIN COMMOTION (Heard once in "A Bird's Guide to Health".)
- Sound Ideas, SQUEAK, CARTOON - LONG BALLOON SQUEAK (Heard once in "The Sounds All Around" and "Make Yourself at Home".)
- Sound Ideas, SQUEAK, CARTOON - RUBBING GLASS SQUEAKS (Heard once in "The Cat in the Hat Cleans Up His Act".)
- Sound Ideas, SQUEAK, CARTOON - SHORT SCRAPING SQUEAK (Heard once in "The Sounds All Around".)
- Sound Ideas, SQUEAK, CARTOON - SINGLE RUB SQUEAK 01 (Heard once in "The Sounds All Around".)
- Sound Ideas, SQUEAK, CARTOON - SINGLE RUB SQUEAK 02 (Heard twice in "The Sounds All Around".)
- Sound Ideas, SQUEAK, CARTOON - SINGLE RUB SQUEAK 03 (Heard once in "The Sounds All Around".)
- Sound Ideas, SQUEAK, METAL - METAL PULLEY: TURNING
- Sound Ideas, SQUEAK, METAL - MOVE SIDE TO SIDE (Heard generally in Season 2 episodes.)
- Sound Ideas, SQUEAK, METAL - SLIDING SLOWLY
- Sound Ideas, SQUEAK, RUBBER - RUBBING (Heard once in "The Gink" and "The King's Beard".)
- Sound Ideas, SQUIRT, CARTOON - RAZZBERRY AND WHIP CREAM SQUIRT
- Sound Ideas, STRETCH, CARTOON - RESIN STRING STRETCH (Heard once in "The Cat in the Hat Builds a Door-a-Matic".)
- Sound Ideas, STRETCH, ROPE - STRETCHING ROPE CREAK, MEDIUM 01 (Heard once in "There is Nothing to Fear in Here".)
- Sound Ideas, SWISH, CARTOON - FAST TWIRLING SWISH, LONG (Heard once in "The Cat in the Hat's Big Birthday Surprise", "Talkin' with the Cat" and "The Cat in the Hat Builds a Door-a-Matic".)
- Sound Ideas, SWISH, CARTOON - ROPE TWIRLING SWISHES (Heard once in "Cat's Play".)
- Sound Ideas, SWITCH, PULL - SWITCH WITH PULL CHAIN: SLOW PULL (Heard twice in "There is Nothing to Fear in Here".)
- Sound Ideas, SWOOSH, CARTOON - FAST AIR BY 01 (Heard once in "The Sounds All Around".)
- Sound Ideas, TEETH, CARTOON - SCOOBY'S TEETH CHATTER, LONG
- Sound Ideas, TELEPHONE, DOMESTIC - DIAL PHONE: BELL RINGING
- Sound Ideas, TELEPHONE, DOMESTIC - OLD DIAL PHONE: BELL RINGING (Heard once in "Max the Hero".)
- Sound Ideas, TELEPHONE, DOMESTIC - OLD DIAL PHONE: PICK UP RECEIVER (Heard once in "Max the Hero".)
- Sound Ideas, TELEPHONE, ELECTRONIC - ELECTRONIC 2: RINGING, OFFICE
- Sound Ideas, THUNDER - THUNDER CLAP AND RUMBLE, WEATHER 01 (Series 6000)
- Sound Ideas, TIMER - PLASTIC TIMER WITH BELL END
- Sound Ideas, TRAIN, STEAM - WHISTLE, MANY BLASTS, CLOSE UP
- Sound Ideas, TWANG, CARTOON - METALLIC RULER VIBRATE (Heard once in "The Cat in the Hat Builds a Door-a-Matic".)
- Sound Ideas, TWANG, CARTOON - SAW BLADE TWANG 02 (Heard once in "The Cat in the Hat Builds a Door-a-Matic".)
- Sound Ideas, WATER, LAKE - WATER LAPPING ON ROCK SHORE, LIGHT, WAVES (Heard once in "Lester Leaps In".)
- Sound Ideas, WEATHER, LIGHTNING - BOLT OF LIGHTNING STRIKES CLOSE BY, THUNDER 04 (Heard once in "There is Nothing to Fear in Here".)
- Sound Ideas, WHINE, CARTOON - SHELL SCREAMING WHINE DOWN
- Sound Ideas, WHISTLE - PEA WHISTLE: MEDIUM BLOW, POLICE
- Sound Ideas, WIND - GENTLE DESOLATE WIND, WEATHER
- Sound Ideas, XYLOPHONE - XYLOPHONE: QUICK GLISS DOWN, CARTOON, MUSIC, PERCUSSION (Heard once in "The Cat in the Hat Takes a Nap", "The Cat in the Hat's First-First Day", and "The Feed You Need".)
- Sound Ideas, XYLOPHONE - XYLOPHONE: QUICK GLISS UP, CARTOON, MUSIC, PERCUSSION (Heard once in "Make Yourself at Home", "The Cat in the Hat's First-First Day", "The Sounds All Around", "The Cat in the Hat Takes a Nap", and "Walkin' with the Cat".)
- Sound Ideas, ZIP, CARTOON - BIG WHISTLE ZING IN (Heard once in "The Cat in the Hat's Indoor Picnic".)
- Sound Ideas, ZIP, CARTOON - BIG WHISTLE ZING OUT (Heard once in "The Cat in the Hat's Indoor Picnic", "The Cat in the Hat Takes a Nap", "The Cat in the Hat's Big Birthday Surprise", "There is Nothing to Fear in Here", "A Bird's Best Friend", "Talkin' with the Cat" and "The Cat in the Hat Gets a Package".)
- Sound Ideas, ZIP, CARTOON - HOYT'S ZIP (Heard once in "The Cat in the Hat Cleans Up His Act" in a high pitch.)
- Sound Ideas, ZIP, CARTOON - LONG RICCO ZIP IN 02 (Heard once in "The Cat in the Hat's Indoor Picnic", "The Cat in the Hat Cleans Up His Act" and "The Cat in the Hat Builds a Door-a-Matic".)
- Sound Ideas, ZIP, CARTOON - LONG RICCO ZIP IN 03 (Heard once in "Lester Leaps In" and "The Cat in the Hat Gets a Package".)
- Sound Ideas, ZIP, CARTOON - QUICK FIDDLE ZIP DOWN (Heard once in "The Cat in the Hat Cleans Up His Act".)
- Sound Ideas, ZIP, CARTOON - QUICK SLIDE WHISTLE ZIP DOWN (Heard once in "The Cat in the Hat Takes a Nap", "The Feed You Need", "The Cat in the Hat's Indoor Picnic", "The Cat in the Hat Cleans Up His Act", "A Bird's Best Friend", "The Cat in the Hat Helps a Friend", "Talkin' with the Cat" and "Walkin' with the Cat".)
- Sound Ideas, ZIP, CARTOON - QUICK SLIDE WHISTLE ZIP UP (Heard twice in "Walkin' with the Cat" and once in "The Cat in the Hat Cleans Up His Act".)
- Sound Ideas, ZIP, CARTOON - QUICK WHISTLE ZIP OUT (Heard once in "The Cat in the Hat's Big Birthday Surprise", "The Feed You Need", "The Cat in the Hat's Indoor Picnic", "A Bird's Best Friend", "There is Nothing to Fear in Here", "Lester Leaps In" and "Walkin' with the Cat".)
- Sound Ideas, ZIP, CARTOON - QUICK WHISTLE ZIP OUT, HIGH (Heard once in "There is Nothing to Fear in Here", "The Feed You Need", "The Cat in the Hat Helps a Friend", "Talkin' with the Cat" and "Walkin' with the Cat".)
- Sound Ideas, ZIP, CARTOON - SHARP ZIP (Heard once in "The Cat in the Hat Cleans Up His Act".)
- Sound Ideas, ZIP, CARTOON - ZURUP (Heard once in a low pitch in "Lester Leaps In" and "The Cat in the Hat Gets a Package" and in a normal pitch in "Make Yourself at Home", "The Cat in the Hat's Big Birthday Surprise" and "Cat's Play".)
- Valentino Cat Meows (Heard in "The Gink".)