This show primaily uses sound effects from selected libraries, such as Hanna-Barbera, Warner Bros., Cartoon Trax V1, 20th Century Fox, Animal Trax, Lucasfilm, Series 2000, Series 4000, Series 6000, Premiere Edition V1 and The Edge Edition V1.
- Advantage Audio Pop
- Anime Kotsuzumi Sound (Heard once in "Lab Cat".)
- Bank - A Miracle
- Bank - Beetle's Escape
- Bank - Double Hit
- Bank - The Glamour Of Fanfares
- Bank - Glissando Hits
- Bank - Harp Arpeggios
- Bank - Up & Down
- Bank - Woodwinds Progression
- Blastwave FX, Sports - Crowd Arena Big Cheer 01
- Boom Box Post Flexitone
- Boom Box Post Teeth Chattering
- Boom Box Post Tire Skid
- Cipha Sounds Air Horn (First heard in "Kaiju Kitty".)
- Disney - SMALL BONK
- Hacienda Post Door Slam
- Hacienda Post Punch
- H-B BLINK, CARTOON - HIGH EYE BLINKS
- H-B PLINK, CARTOON - LOW PLINK (Heard once in "Dinner Apart-y".)
- H-B TEETH, CARTOON - TEETH CHATTER/SoundDogs, Cartoons - Chattering Teeth Or Bones - CU - Fast Clicking Rattles
- H-B ZIP, CARTOON - LOW WHISTLE ZING OUT
- Joel Valentine Alarm Bell Sound
- Joel Valentine Bodyfall Sound
- Hollywoodedge, Alarm 1 Contemporary TE012001 (Heard once in "Lab Cat".)
- Hollywoodedge, Alarm 2 Contemporary TE012101 (Heard once in "Lab Cat".)
- Hollywoodedge, Ascending Whistles CRT057902 (Heard once in "Super Amazing Raft Adventure".)
- Hollywoodedge, Baby Cries HospitalN PE144201
- Hollywoodedge, Bird Duck Quacks Clos PE020501 (Heard in "Kitty Court", "Film Fest", and "Kitty and Hawk"; used for Ted Butter.)
- Hollywoodedge, Bird Hawk Single Scre PE020801/Hollywoodedge, Hawk Screech Single AT082901
- Hollywoodedge, Bird Seagull Four Sin PE021601
- Hollywoodedge, Bonk Pseudo String Pl PE941201
- Hollywoodedge, Bounce Jews Harp CRT015806/Sound Ideas, HIT, CARTOON - FLAT BONK
- Hollywoodedge, Bull Roar Medium Pers PE022301 (Heard once in "The Zone" and "Bedtime Stories".)
- Hollywoodedge, Car Alarm Series Car A TE012502 (Heard in "Baby Caterpillar".)
- Hollywoodedge, Car Crash Small 1 Shor PE111901
- Hollywoodedge, Children Sml Grp Yell PE954901/Hollywoodedge, Small Group Kids Chee PE142801
- Hollywoodedge, Cow Moos Three TimesC PE022901 (2nd moo; heard once in "Super Amazing Raft Adventure" and "Rainbow Race".)
- Hollywoodedge, Crash Metal Shatter PE110201
- Hollywoodedge, Crash Metal Shatter PE110401 (Heard in "Pet Pet".)
- Hollywoodedge, Crowd 50 WWhistlesA LCA013801
- Hollywoodedge, Dolphin Chirps Vocal PE024601
- Hollywoodedge, Doppler Horn By LeftT PE079801
- Hollywoodedge, Elec Guitar Gliss Ups AC059601 (1st gliss; heard once in "The Zone".)
- Hollywoodedge, Elephant Trumpeting PE024801 (2nd trumpet; heard once in "Camp Unikitty".)
- Hollywoodedge, Elevator Bell DingsL PE192801 (Heard in "Top of the Naughty Lost".)
- Hollywoodedge, Fanfare Ta Da CRT044001
- Hollywoodedge, Fart 4 Very Short High PE139201 (One of the show’s common fart sounds.)
- Hollywoodedge, Fast Rhythm Metal Im CRT039001 (Heard once in "Sparkle Matter Matters".)
- Hollywoodedge, Funny Sgl Chicken CRT011001 (Heard twice in "Welcome to the Unikingdom".)
- Hollywoodedge, Girl Screams Long Hi CRT028201
- Hollywoodedge, Heavy Kick Kick Sharp FS041202
- Hollywoodedge, High Pitch Moose Cal CRT013101 (Heard once in "Camp Unikitty".)
- Hollywoodedge, Large Ceramic Pot Bre TE023001/Hollywoodedge, Pottery Drop Break PE112401
- Hollywoodedge, Lincoln Town Car In Sk PE073501 (Heard once in "Birthday Blowout" and "Float On".)
- Hollywoodedge, Low Pitched Squeak CRT049301 (Heard once in "Unikitty News!".)
- Hollywoodedge, Medium Crowd AdultsY PE142901
- Hollywoodedge, Medium Exterior Crow PE140401
- Hollywoodedge, Medium Exterior Crow PE140501
- Hollywoodedge, Old Car Horns Single CRT021302
- Hollywoodedge, Punch Face Hit 1 Sharp PE100101
- Hollywoodedge, Punch Face Hit 4 Sharp PE100401
- Hollywoodedge, Puma Cougar Roar Clas AT016701 (Heard once in the intro.)
- Hollywoodedge, Quick Double Bell Di CRT015001
- Hollywoodedge, Rubber Ball Bounces CRT041801
- Hollywoodedge, Rubber Toy SqueaksV TE2017902
- Hollywoodedge, Screams 2 Woman Singl PE133601 (Heard once in "Unfairgrounds Part 1".)
- Hollywoodedge, Screams 4 Woman Singl PE133801 (Heard once in "Spoooooky Game".)
- Hollywoodedge, Screams 7 Woman Three PE134101 (Heard once in "Roadtrip Ruckus".)
- Hollywoodedge, Semi Horn Honk Long Sh PE298101 (Heard once in "Roadtrip Ruckus" and "Rainbow Race".)
- Hollywoodedge, Several Rapid Swish CRT054101
- Hollywoodedge, Sheep Baa Medium Pers PE027001 (Heard once in "Roadtrip Ruckus".)
- Hollywoodedge, Single Classic Wolf CRT012501/Sound Ideas, COYOTE - LONG HOWL, ANIMAL/Sound Ideas, WOLF - LONG HOWL, ANIMAL 01
- Hollywoodedge, Siren Blast Alarm CRT051501
- Hollywoodedge, Small Twang Hair Plu CRT047101
- Hollywoodedge, Sword Shing Long Clan PE245201 (Heard once in "Big Pup, Little Problem".)
- Hollywoodedge, Twangy Boings 7 Type CRT015901
- Hollywoodedge, Warning Buzzer Space PE194501
- Hollywoodedge, Whind Up Toy Click CRT036302
- Hollywoodedge, Whistle Spins CRT058304 (Heard once in "Baby Caterpillar".)
- Hollywoodedge, Winchester Rifle Coc PE090901/SoundBible, Shotgun Reload Old (Heard once in "Welcome to the Unikingdom".)
- Nintendo GameBoy Startup Sound
- Pro Sound Effects, Cartoon, Magical, Twinkle, Ascend (Heard once in "Little Prince Puppycorn".)
- ProjectSAM, Bon Rip 01
- ProjectSAM, Bon Rip 02
- ProjectSAM, Bon Rip 03
- Sound Ideas, ALARM, ELECTRONIC - GENERAL WARNING SYSTEM: SHORT CONSTANT BEEPS 01 (Heard once in "Lab Cat".)
- Sound Ideas, BABIES AND CHILDREN - CHILDREN CHEERING. REC. AT ST. LUKE'S PRIMARY, BRIGHTON
- Sound Ideas, BALLOON - BALLOON AIR SQUEAK 05 (Heard once in "Space Misson: Danger".)
- Sound Ideas, BELL, FIGHT - BOXING RING FIGHT BELL: SINGLE RING, SPORTS
- Sound Ideas, BELL, ORCHESTRA - FAST GLISS UP, MUSIC, PERCUSSION
- Sound Ideas, BELL, ORCHESTRA - RUN UP AND TRILL, MUSIC, PERCUSSION
- Sound Ideas, BELL, ORCHESTRA - SHORT TRILL, MUSIC, PERCUSSION
- Sound Ideas, BIRD, BLUE JAY - SINGLE CALLS, ANIMAL 01
- Sound Ideas, BIRD, GOOSE - CANADA GOOSE: CALLS, GEESE, ANIMAL (Heard once in "Batkitty".)
- Sound Ideas, BIRD, HAWK - SINGLE HAWK CHIRPING, ANIMAL
- Sound Ideas, BITE, CARTOON - BIG CHOMP (Heard once in "Kickflip McPuppycorn" and "Batkitty".)
- Sound Ideas, BITE, CARTOON - BONE BITE
- Sound Ideas, BLINK, CARTOON - XYLO EYE BLINKS
- Sound Ideas, BLOOP, CARTOON - LITTLE BLOOP
- Sound Ideas, BOING, CARTOON - BIG, LONG BOING (Heard once in “Tooth Trouble”.)
- Sound Ideas, BOING, CARTOON - BOINK AND WIGGLE
- Sound Ideas, BOING, CARTOON - GONG BOING
- Sound Ideas, BOING, CARTOON - GOOD SPRONG 01
- Sound Ideas, BOING, CARTOON - GOOD SPRONG 02
- Sound Ideas, BOING, CARTOON - HOYT'S BOING
- Sound Ideas, BOING, CARTOON - RIPPLE BOING
- Sound Ideas, BOING, CARTOON - SPROING 01
- Sound Ideas, BOINK, CARTOON - BOINK 01
- Sound Ideas, BOINK, CARTOON - DOINK 03/Sound Ideas, HIT, CARTOON - PAT'S BILP (Heard once in "Beep".)
- Sound Ideas, BOINK, CARTOON - HOYT'S BOINK
- Sound Ideas, CARTOON, ACCENT - XYLOPHONE TRILL, LONG, MUSIC, PERCUSSION (First heard in "Spoooooky Game".)
- Sound Ideas, CARTOON, AIRPLANE - PROP PLANE POWER DIVE SCREAM, TWO TIMES
- Sound Ideas, CARTOON, BOING - JEWS HARP BOING
- Sound Ideas, CARTOON, BOING - THIN METAL PING AND WARBLE 01 (Heard in "Tooth Trouble".)
- Sound Ideas, CARTOON, HIT - BIG ANVIL HIT
- Sound Ideas, CARTOON, HORN - PARTY HORN, TWO TOOTS 01 (1st toot only: heard in "First Flight".)
- Sound Ideas, CARTOON, POP - LITTLE POP (Heard once in "R & Arr".)
- Sound Ideas, CARTOON, SLIDE - SHORT VIOLIN SLIDE DOWN
- Sound Ideas, CARTOON, SLIDE - SHORT VIOLIN SLIDE UP
- Sound Ideas, CARTOON, SLIDE - SHORT WARBLY VIOLIN SLIDE, DOWN
- Sound Ideas, CARTOON, SQUAWK - SMALL HORN BONK 01
- Sound Ideas, CARTOON, SQUAWK - SMALL HORN BONK 02
- Sound Ideas, CARTOON, SQUEAK - SEVERAL RUBBER SQUEAKS, STRETCH
- Sound Ideas, CARTOON, WHISTLE - FALL WHISTLE, MEDIUM 01
- Sound Ideas, CARTOON, WHISTLE - FLUTTER WHISTLE: LONG SPINNING WHISTLE
- Sound Ideas, CARTOON, WHISTLE - LONG ZIP BY
- Sound Ideas, CARTOON, WHISTLE - SLIDE WHISTLE: FAST ZIP UP
- Sound Ideas, CARTOON, WHISTLE - SLIDE WHISTLE, DOWN, LONG
- Sound Ideas, CARTOON, WHISTLE - SLIDE WHISTLE: LONG SLOW WARBLE DOWN
- Sound Ideas, CARTOON, WHISTLE - SLIDE WHISTLE: LONG WARBLE UP
- Sound Ideas, CARTOON, WHISTLE - SLIDE WHISTLE: QUICK ZIP UP
- Sound Ideas, CARTOON, WHISTLE - SLIDE WHISTLE: SEVERAL QUICK ZIPS UP 02
- Sound Ideas, CARTOON, WHISTLE - SLIDE WHISTLE, UP, LONG
- Sound Ideas, CASH REGISTER - ANTIQUE: SINGLE KEY WITH BELL, FAST (Heard often in "Career Day".)
- Sound Ideas, CHILDREN, CROWD - SMALL STUDIO AUDIENCE OF CHILDREN: BIG CHEER, CHEERING 01 (Heard once in "Roadtrip Ruckus".)
- Sound Ideas, CROWD, PANIC - TEEN PANIC CROWD
- Sound Ideas, CROWD, SCREAM - SMALL STUDIO AUDIENCE: FRIGHTENED SCREAM
- Sound Ideas, DOOR, BELL - SINGLE RING (Heard in "P.L.O.T. Device".)
- Sound Ideas, ELECTRONIC - ELECTRONIC MAGIC 01
- Sound Ideas, ELECTRONIC - MAGICAL SWISH 03 (Heard once in "Wishing Well".)
- Sound Ideas, FIREWORKS - SEQUENCE OF FIREWORKS, EXPLOSION
- Sound Ideas, GUN, RICOCHET - SHORT THIN RICOCHET, BULLET 02 (Heard once in "Hawkodile Sensei".)
- Sound Ideas, HIT, CARTOON - BIG HEAD BONK
- Sound Ideas, HIT, CARTOON - BILP
- Sound Ideas, HIT, CARTOON - BRAKE DRUM AND BULB HORN HIT
- Sound Ideas, HIT, CARTOON - COCONUT HIT 01
- Sound Ideas, HIT, CARTOON - COCONUT HIT 02
- Sound Ideas, HIT, CARTOON - HEAVY TIMP RISE
- Sound Ideas, HIT, CARTOON - KABONG
- Sound Ideas, HIT, HUMAN - KICK TO FACE, CARTOON, PUNCH 01
- Sound Ideas, HOP, CARTOON - SINGLE JEWS HARP HOP 01
- Sound Ideas, HORN, BULB - CLOWN BICYCLE BULB HORN, MEDIUM SQUEEZES (Heard in "Hawkodile Sensei".)
- Sound Ideas, HUMAN, BABY - EIGHT WEEK OLD BABY: CRYING (low pitched)
- Sound Ideas, HUMAN, BABY - CHILD CRYING, 2 MONTHS OLD BABY, HUMAN, DIGIFFECTS (Heard once in a high pitch in "Pool Duel".)
- Sound Ideas, HUMAN, BABY - CRYING (2nd half; used in a high pitch with a distorted effect added for Fuzz Fuzz when he cries in "Baby Caterpillar". This marks the first and only known time this baby crying sound effect has ever been used in any official LEGO media.)
- Sound Ideas, HUMAN, BABY - CRYING, WHINING (Used once in a low pitch for Fuzz Fuzz when he cries in "Baby Caterpillar".)
- Sound Ideas, HUMAN, FART - SMALL FART 01 (One of the show’s common fart sounds.)
- Sound Ideas, INDUSTRY, HYDRAULIC - ELECTRIC HYDRAULIC MACHINE: UP FULL, FACTORY (Heard in a low pitch in "Sparkle Matter Matters".)
- Sound Ideas, LEVER, RATCHET - LARGE CRANK OR LEVER: RATCHETING, 10 TAKES (The 10th take is heard once in "Unfairgrounds Part 2".)
- Sound Ideas, MAGIC - BABOO MAGIC 02 (Heard once in “Super Amazing Raft Adventure”.)
- Sound Ideas, NOISEMAKER - HORN: TOOT, PARTY, TOY (Heard in "Grown Up Stuff".)
- Sound Ideas, NOISEMAKER - PAPER BLOWOUT WITH HORN, PARTY (Heard in "Beep" and "Career Day".)
- Sound Ideas, ORCHESTRA BELLS - GLISS, UP, MUSIC, PERCUSSION
- Sound Ideas, PING, CARTOON - SMALL STRING PLUCK 01 (Heard once in "Kitty and Hawk".)
- Sound Ideas, PLINK, CARTOON - SOUR PLINK
- Sound Ideas, PLUCK, CARTOON - VAROOP
- Sound Ideas, POP, CARTOON - PIP POP (Heard once in "Dunklecorn".)
- Sound Ideas, POP, CARTOON - SQUISH POP
- Sound Ideas, RAT - RAT SQUEAKS, ANIMAL, RODENT (Heard often in "Hawkodile Sensei".)
- Sound Ideas, RICOCHET - BOW STRING RICCO
- Sound Ideas, RICOCHET - CARTOON RICCO 01/Sound Ideas, ZIP, CARTOON - RICCO ZIP OUT 01
- Sound Ideas, RICOCHET - CARTOON RICCO 02
- Sound Ideas, RICOCHET - CARTOON RICCO 03
- Sound Ideas, RICOCHET - CARTOON RICCO 04
- Sound Ideas, RICOCHET - CARTOON RICCO 05
- Sound Ideas, RICOCHET - CARTOON RICCO 06
- Sound Ideas, RICOCHET - CARTOON RICCO 07
- Sound Ideas, RICOCHET - EXPLOSIVE RICCO
- Sound Ideas, RICOCHET - GUN SHOT RICCO OUT
- Sound Ideas, RICOCHET - SLICK RICCO 02
- Sound Ideas, ROBOT, MOTOR - ROBOT SERVO MOTOR 03
- Sound Ideas, RUN, CARTOON - BLOP GALLOP, LONG/SHORT
- Sound Ideas, RUN, CARTOON - TEMPLE BLOCK GALLOP, LONG/SHORT
- Sound Ideas, RUN, CARTOON - TEMPLE BLOCK RIOT, LONG/MEDIUM/SHORT
- Sound Ideas, RUN, CARTOON - WIND WHISTLE SCAT
- Sound Ideas, SCI FI - BRAINIAC
- Sound Ideas, SCI FI - FREEZE GUN, LONG
- Sound Ideas, SCI FI - ROCKET BLAST OFF AND AWAY
- Sound Ideas, SCI FI - SINGING SWORD
- Sound Ideas, SCI FI - SONIC VIBRO RAY
- Sound Ideas, SCI FI - SUPERMAN FLYING WIND
- Sound Ideas, SCREAM, CROWD - SMALL STUDIO AUDIENCE: TERRIFIED PANIC SCREAMING 03
- Sound Ideas, SKID, CARTOON - BENT SKID
- Sound Ideas, SKID, CARTOON - BROKEN SKID
- Sound Ideas, SKID, CARTOON - SHORT CAR SKID (Heard once in "Asteroid Blues".)
- Sound Ideas, SLIDE, CARTOON - FAST SLIDE UP AND DOWN 01
- Sound Ideas, SLIDE, CARTOON - FAST SLIDE UP AND DOWN 02
- Sound Ideas, SLIDE, CARTOON - FIDDLE SLIDE AND QUICK RUN UP
- Sound Ideas, SLIDE, CARTOON - FIDDLE SLIDE DOWN 01
- Sound Ideas, SLIDE, CARTOON - FIDDLE SLIDE DOWN 02
- Sound Ideas, SLIDE, CARTOON - FIDDLE SLIDE DOWN, LONG
- Sound Ideas, SLIDE, CARTOON - FIDDLE SLIDE DOWN, SHORT
- Sound Ideas, SLIDE, CARTOON - FIDDLE SLIDE UP 01
- Sound Ideas, SLIDE, CARTOON - FIDDLE SLIDE UP 02
- Sound Ideas, SLIDE, CARTOON - QUICK SLIDE DOWN
- Sound Ideas, SPACE, COMPUTER - SPACE SHIP CONSOLE: BEEP, ELECTRONIC, SCI FI 02
- Sound Ideas, SPLAT, CARTOON - PIE IN FACE SPLAT (Heard once in "Rainbow Race".)
- Sound Ideas, SPLAT, CARTOON - PAINT FIGHT GLOP 02 (Heard in "Dawn of the Donut".)
- Sound Ideas, SQUISH, CARTOON - LITTLE SQUISH (Heard once in "Dawn of the Donut".)
- Sound Ideas, STRETCH, CARTOON - RUBBER STRETCH, LONG
- Sound Ideas, SWISH, CARTOON - FAST TWIRLING SWISH, LONG (Heard once in "The Zone".)
- Sound Ideas, TAKE, CARTOON - FUNNY RUN UP TAKE
- Sound Ideas, TAKE, CARTOON - TUBE TAKE
- Sound Ideas, TAKE, CARTOON - WHISTLE TAKE
- Sound Ideas, TEETH, CARTOON - SCOOBY'S TEETH CHATTER, LONG/SHORT
- Sound Ideas, THUMP, CARTOON - TUBE THUNK 01
- Sound Ideas, TWANG, CARTOON - BOWANG
- Sound Ideas, TWANG, CARTOON - HOYT'S BOW TWANG
- Sound Ideas, TWANG, CARTOON - METALLIC RULER VIBRATE (Heard in "Who Took Toast".)
- Sound Ideas, WHINE, CARTOON - SHELL SCREAMING WHINE DOWN
- Sound Ideas, WHISTLE, STEAM - FLINTSTONE FACTORY WHISTLE, SHORT, CARTOON (Heard once in "Dawn of the Donut"; captioned as “(Alarm blaring)”.)
- Sound Ideas, WOBBLE, CARTOON - SAW BLADE WOBBLE, SHORT (Heard once in "The Perfect Moment" and "Election Day".)
- Sound Ideas, ZIP, CARTOON - BIG WHISTLE ZING IN
- Sound Ideas, ZIP, CARTOON - BIG WHISTLE ZING OUT
- Sound Ideas, ZIP, CARTOON - KEEN ZIP OUT
- Sound Ideas, ZIP, CARTOON - QUICK FIDDLE ZIP DOWN
- Sound Ideas, ZIP, CARTOON - QUICK FIDDLE ZIP UP (Heard once in "Rainbow Race".)
- Sound Ideas, ZIP, CARTOON - QUICK SLIDE WHISTLE ZIP DOWN
- Sound Ideas, ZIP, CARTOON - QUICK WHISTLE ZIP IN
- Sound Ideas, ZIP, CARTOON - QUICK WHISTLE ZIP OUT
- Sound Ideas, ZIP, CARTOON - QUICK WHISTLE ZIP OUT, HIGH
- Sound Ideas, ZIP, CARTOON - SHARP WHISTLE ZIP
- Sound Ideas, ZIP, CARTOON - SHARP ZIP (Heard once in "Sparkle Matter Matters".)
- Sound Ideas, ZIP, CARTOON - TAKE ZIP
- Sound Ideas, ZIP, CARTOON - ZURUP
- Wilhelm Scream