- Alien
- #311 - The Rescue Mission
- “Ashite”
- #314 - Heir to the Throne
- Astronema
- #325 - Protect the Quasar Saber
- “Auction Guard #1”
- #325 - Protect the Quasar Saber
- “Auction Guard #2”
- #325 - Protect the Quasar Saber
- Auctioneer
- #325 - Protect the Quasar Saber
- “Aunt Ant”
- #325 - Protect the Quasar Saber
- Barbarax
- #329 - Beware the Mutiny
- #330 - Grunchor on the Loose
- #331 - Until Sunset
- #333 - Hexuba’s Graveyard
- #334 - Raise the Titanisaur
- #335 - Escape the Lost Galaxy
- “Barfly Betty”
- #314 - Heir to the Throne
- #325 - Protect the Quasar Saber
- Barillian Bug
- #314 - Heir to the Throne
- “Bashful Bugguy”
- #314 - Heir to the Throne
- #325 - Protect the Quasar Saber
- Batterax
- #314 - Heir to the Throne
- “Big Burqa”
- #325 - Protect the Quasar Saber
- “Bobbin’ Buzzard”
- #314 - Heir to the Throne
- “Bobogoat”
- #314 - Heir to the Throne
- “Boogie Knight”
- #325 - Protect the Quasar Saber
- “Brother Winter”
- #325 - Protect the Quasar Saber
- Brunt
- #296 - Race to the Rescue
- Cannonbrawl
- #317 - Green Courage
- #325 - Protect the Quasar Saber
- Captain Mutiny
- #303 - The Sunflower Search
- #329 - Beware the Mutiny
- #330 - Grunchor on the Loose
- #331 - Until Sunset
- #332 - Dream Battle
- #333 - Hexuba’s Graveyard
- #334 - Raise the Titanisaur
- #335 - Escape the Lost Galaxy
- Chameliac
- #322 - The Chameliac Warrior
- Chillyfish
- #304 - Silent Sleep
- “Cloakroach”
- #314 - Heir to the Throne
- #325 - Protect the Quasar Saber
- “Crockjaw”
- #314 - Heir to the Throne
- Crocotox (I)
- #325 - Protect the Quasar Saber
- Crumummy
- #310 - Stolen Beauty
- “Dark Spectacle”
- #325 - Protect the Quasar Saber
- Darkonda
- #326 - Facing the Past
- Decibat
- #325 - Protect the Quasar Saber
- #327 - Turn Up the Volume
- Destructoid
- #314 - Heir to the Throne
- Destruxo
- #305 - Orion Rising
- #306 - Orion Returns
- #333 - Hexuba’s Graveyard
- Deviot
- #312 - The Lost Galactabeasts Part 1
- #313 - The Lost Galactabeasts Part 2
- #314 - Heir to the Throne
- #315 - An Evil Game
- #317 - Green Courage
- #319 - Mean Wheels Mantis
- #320 - Loyax’ Last Battle
- #321 - A Red Romance
- #322 - The Chameliac Warrior
- #323 - To the Tenth Power
- #324 - The Power of Pink
- #325 - Protect the Quasar Saber
- #327 - Turn Up the Volume
- #328 - Enter the Lost Galaxy
- #329 - Beware the Mutiny
- #330 - Grunchor on the Loose
- #331 - Until Sunset
- #334 - Raise the Titanisaur
- #335 - Escape the Lost Galaxy
- #336 - Journey’s End Part 1
- “Dirk Diablo”
- #325 - Protect the Quasar Saber
- “Doddio”
- #325 - Protect the Quasar Saber
- “Dregoff”
- #325 - Protect the Quasar Saber
- “Farewell Fiend”
- #314 - Heir to the Throne
- Fearog
- #314 - Heir to the Throne
- Fishface
- #303 - The Sunflower Search
- #333 - Hexuba’s Graveyard
- Flamite
- #325 - Protect the Quasar Saber
- “Ford Defect”
- #325 - Protect the Quasar Saber
- Freaky Tiki
- #308 - Redemption Day
- #333 - Hexuba’s Graveyard
- “Freddie Filter”
- #325 - Protect the Quasar Saber
- Furio
- #294 - Quasar Quest Part 1
- #295 - Quasar Quest Part 2
- #296 - Race to the Rescue
- #297 - Rookie in Red
- #298 - Homesick
- #299 - The Lights of Orion
- #300 - Double Duty
- #301 - The Blue Crush
- #302 - The Magna Defender
- #316 - Memories of Mirinoi
- #331 - Until Sunset
- “Fuzzor”
- #325 - Protect the Quasar Saber
- Gasser
- #298 - Homesick
- #333 - Hexuba’s Graveyard
- “Gassous Clay”
- #325 - Protect the Quasar Saber
- “Ghoulio”
- #325 - Protect the Quasar Saber
- “Goggle P”
- #314 - Heir to the Throne
- “Goldyflox”
- #325 - Protect the Quasar Saber
- Green Shark
- #307 - Shark Attack
- #325 - Protect the Quasar Saber
- “Grimhorn”
- #325 - Protect the Quasar Saber
- Grunchor
- #329 - Beware the Mutiny
- #330 - Grunchor on the Loose
- Guitardo
- #325 - Protect the Quasar Saber
- Hardtochoke
- #313 - The Lost Galactabeasts Part 2
- #333 - Hexuba’s Graveyard
- “Hate Mistress”
- #314 - Heir to the Throne
- Hexuba
- #332 - Dream Battle
- #333 - Hexuba’s Graveyard
- “Hockjaw”
- #325 - Protect the Quasar Saber
- Horn
- #297 - Rookie in Red
- #333 - Hexuba’s Graveyard
- “Hunghorn”
- #314 - Heir to the Throne
- #325 - Protect the Quasar Saber
- Icy Angel
- #318 - Blue to the Test
- Impostra
- #303 - The Sunflower Search
- #306 - Orion Returns
- Ironite
- #325 - Protect the Quasar Saber
- Kegler
- #314 - Heir to the Throne
- #315 - An Evil Game
- #317 - Green Courage
- #318 - Blue to the Test
- #319 - Mean Wheels Mantis
- #320 - Loyax’ Last Battle
- #322 - The Chameliac Warrior
- #323 - To the Tenth Power
- #324 - The Power of Pink
- #325 - Protect the Quasar Saber
- #327 - Turn Up the Volume
- #329 - Beware the Mutiny
- #336 - Journey’s End Part 1
- #337 - Journey’s End Part 2
- Kubak
- #315 - An Evil Game
- “Lady E-Lame”
- #325 - Protect the Quasar Saber
- “Launchbad”
- #325 - Protect the Quasar Saber
- Loyax
- #320 - Loyax’ Last Battle
- “Maggot”
- #314 - Heir to the Throne
- Magnetox
- #326 - Facing the Past
- “Margenite”
- #325 - Protect the Quasar Saber
- Maronda
- #321 - A Red Romance
- Marvo the Meanie
- #325 - Protect the Quasar Saber
- “Masquerale”
- #325 - Protect the Quasar Saber
- “Mocktor Doom”
- #325 - Protect the Quasar Saber
- “Mosquito Man”
- #314 - Heir to the Throne
- Motor Mantis
- #303 - The Sunflower Search
- #319 - Mean Wheels Mantis
- Mutantrum
- #299 - The Lights of Orion
- #333 - Hexuba’s Graveyard
- “Nasonex”
- #314 - Heir to the Throne
- Nightmare Monster
- #332 - Dream Battle
- “Onyxmoron”
- #325 - Protect the Quasar Saber
- “Orange Agent”
- #325 - Protect the Quasar Saber
- Oysterizer
- #325 - Protect the Quasar Saber
- “Patchy”
- #314 - Heir to the Throne
- Piranhatrons
- #325 - Protect the Quasar Saber
- “Princess Amygdala”
- #325 - Protect the Quasar Saber
- Psycho Black
- #323 - To the Tenth Power
- #331 - Until Sunset
- Psycho Blue
- #323 - To the Tenth Power
- #331 - Until Sunset
- Psycho Pink
- #323 - To the Tenth Power
- #324 - The Power of Pink
- #331 - Until Sunset
- Psycho Red
- #323 - To the Tenth Power
- #331 - Until Sunset
- Psycho Yellow
- #323 - To the Tenth Power
- #331 - Until Sunset
- Quakemaker
- #301 - The Blue Crush
- #322 - The Chameliac Warrior
- #333 - Hexuba’s Graveyard
- Radster
- #296 - Race to the Rescue
- #303 - The Sunflower Search
- #322 - The Chameliac Warrior
- “Rambonnet”
- #325 - Protect the Quasar Saber
- “Raybaan”
- #325 - Protect the Quasar Saber
- Red Shark
- #307 - Shark Attack
- #325 - Protect the Quasar Saber
- Rhinoblaster
- #314 - Heir to the Throne
- Rocketron
- #329 - Beware the Mutiny
- Rojomon
- #331 - Until Sunset
- Runtus
- #325 - Protect the Quasar Saber
- Ruptor
- #302 - The Magna Defender
- #322 - The Chameliac Warrior
- Rykon
- #316 - Memories of Mirinoi
- #322 - The Chameliac Warrior
- Samuron
- #302 - The Magna Defender
- “Sandyman”
- #325 - Protect the Quasar Saber
- “Scoopy Sloth”
- #314 - Heir to the Throne
- #325 - Protect the Quasar Saber
- Scorpius
- #295 - Quasar Quest Part 2
- #296 - Race to the Rescue
- #297 - Rookie in Red
- #298 - Homesick
- #299 - The Lights of Orion
- #300 - Double Duty
- #301 - The Blue Crush
- #302 - The Magna Defender
- #303 - The Sunflower Search
- #304 - Silent Sleep
- #306 - Orion Returns
- #307 - Shark Attack
- #308 - Redemption Day
- #309 - Destined for Greatness
- #310 - Stolen Beauty
- #312 - The Lost Galactabeasts Part 1
- #313 - The Lost Galactabeasts Part 2
- #314 - Heir to the Throne
- #331 - Until Sunset
- #338 - Journey’s End Part 3
- “Scuba Dude”
- #325 - Protect the Quasar Saber
- “Singling”
- #325 - Protect the Quasar Saber
- Sinister Simian
- #325 - Protect the Quasar Saber
- Skelekron
- #309 - Destined for Greatness
- Skelekron Warrior (blue)
- #309 - Destined for Greatness
- Skelekron Warrior (green)
- #309 - Destined for Greatness
- Skelekron Warrior (white)
- #309 - Destined for Greatness
- Skelekron Warrior (yellow)
- #309 - Destined for Greatness
- Sledge
- #303 - The Sunflower Search
- #322 - The Chameliac Warrior
- #325 - Protect the Quasar Saber
- Soccadillo
- #314 - Heir to the Throne
- #325 - Protect the Quasar Saber
- Spikaka
- #325 - Protect the Quasar Saber
- “Spydor”
- #323 - To the Tenth Power
- Starcon
- #302 - The Magna Defender
- “Steg Malone”
- #314 - Heir to the Throne
- Stingwingers
- #294 - Quasar Quest Part 1
- #295 - Quasar Quest Part 2
- #296 - Race to the Rescue
- #297 - Rookie in Red
- #298 - Homesick
- #299 - The Lights of Orion
- #300 - Double Duty
- #301 - The Blue Crush
- #302 - The Magna Defender
- #303 - The Sunflower Search
- #304 - Silent Sleep
- #305 - Orion Rising
- #306 - Orion Returns
- #307 - Shark Attack
- #308 - Redemption Day
- #309 - Destined for Greatness
- #310 - Stolen Beauty
- #312 - The Lost Galactabeasts Part 1
- #313 - The Lost Galactabeasts Part 2
- #314 - Heir to the Throne
- #315 - An Evil Game
- #316 - Memories of Mirinoi
- #317 - Green Courage
- #318 - Blue to the Test
- #319 - Mean Wheels Mantis
- #320 - Loyax’ Last Battle
- #321 - A Red Romance
- #322 - The Chameliac Warrior
- #323 - To the Tenth Power
- #324 - The Power of Pink
- #325 - Protect the Quasar Saber
- #326 - Facing the Past
- #327 - Turn Up the Volume
- #329 - Beware the Mutiny
- #331 - Until Sunset
- #336 - Journey’s End Part 1
- #337 - Journey’s End Part 2
- Swabbies
- #329 - Beware the Mutiny
- #330 - Grunchor on the Loose
- #331 - Until Sunset
- #332 - Dream Battle
- #333 - Hexuba’s Graveyard
- #334 - Raise the Titanisaur
- #335 - Escape the Lost Galaxy
- “Swarmthing”
- #314 - Heir to the Throne
- Teksa
- #315 - An Evil Game
- #333 - Hexuba’s Graveyard
- Termitis
- #314 - Heir to the Throne
- #325 - Protect the Quasar Saber
- Titanisaur
- #329 - Beware the Mutiny
- #330 - Grunchor on the Loose
- #331 - Until Sunset
- #334 - Raise the Titanisaur
- Trakeena
- #296 - Race to the Rescue
- #297 - Rookie in Red
- #298 - Homesick
- #299 - The Lights of Orion
- #300 - Double Duty
- #301 - The Blue Crush
- #302 - The Magna Defender
- #303 - The Sunflower Search
- #304 - Silent Sleep
- #306 - Orion Returns
- #307 - Shark Attack
- #308 - Redemption Day
- #309 - Destined for Greatness
- #310 - Stolen Beauty
- #314 - Heir to the Throne
- #315 - An Evil Game
- #316 - Memories of Mirinoi
- #317 - Green Courage
- #318 - Blue to the Test
- #319 - Mean Wheels Mantis
- #320 - Loyax’ Last Battle
- #321 - A Red Romance
- #322 - The Chameliac Warrior
- #323 - To the Tenth Power
- #324 - The Power of Pink
- #325 - Protect the Quasar Saber
- #326 - Facing the Past
- #327 - Turn Up the Volume
- #329 - Beware the Mutiny
- #331 - Until Sunset
- #335 - Escape the Lost Galaxy
- #336 - Journey’s End Part 1
- #337 - Journey’s End Part 2
- #338 - Journey’s End Part 3
- Treacheron
- #302 - The Magna Defender
- #303 - The Sunflower Search
- #304 - Silent Sleep
- #306 - Orion Returns
- #307 - Shark Attack
- #331 - Until Sunset
- #333 - Hexuba’s Graveyard
- “Treadmom”
- #314 - Heir to the Throne
- “Trencher”
- #322 - The Chameliac Warrior
- “Tunnelvisor”
- #314 - Heir to the Throne
- Villamax
- #314 - Heir to the Throne
- #315 - An Evil Game
- #316 - Memories of Mirinoi
- #317 - Green Courage
- #318 - Blue to the Test
- #319 - Mean Wheels Mantis
- #320 - Loyax’ Last Battle
- #322 - The Chameliac Warrior
- #323 - To the Tenth Power
- #324 - The Power of Pink
- #325 - Protect the Quasar Saber
- #326 - Facing the Past
- #327 - Turn Up the Volume
- #329 - Beware the Mutiny
- #331 - Until Sunset
- #336 - Journey’s End Part 1
- #337 - Journey’s End Part 2
- “Voorheesinite”
- #314 - Heir to the Throne
- “Waitressian #1”
- #314 - Heir to the Throne
- “Waitressian #2”
- #314 - Heir to the Throne
- “Waitressian #3”
- #314 - Heir to the Throne
- #325 - Protect the Quasar Saber
- Waspicable
- #314 - Heir to the Throne
- Wise Wizard
- #300 - Double Duty
- “Witch Face”
- #325 - Protect the Quasar Saber
- “Wizard of Deal-ception”
- #314 - Heir to the Throne
- #325 - Protect the Quasar Saber
Total: 139 monsters