Halo - Any of the alien races. Yes this includes flood.

Mass Effect - Any Alien characters, Any alien races. Again, yes, this includes the weirder ones, like certain pink jellyfish, robots, tech zombies, and living ships [Oh he'd find a way].

X-Com - Any of the alien races. Seeing a pattern yet?

Doom - Any of the demons, of course.

Duke Nukem - Any of the aliens.

Mario World - Bowser, Bowser Jr,Koopalings, Yoshi, Kamek, Pretty much any of Bowser's Other Minions including dry bones and boos, Toads, Princess Peach, Pretty much any Paper Mario or Mario RPG companion or character.

Legend of Zela - Link, Zelda, Ganon, Midna, Any of the monsters. Deku, Zora, Minish, Rito.

Sonic the Hedgehov - Sonic, Knuckles, Tails, Shadow, Infinite, Robot Minions, Rouge, Tikal, Big, Metal Sonic, Chaos.

Pokemon - Mewtwo, Lucario, Pikachu/Evolutions, Abra/Evolutions, greninja, Charmander/Evolutions, Squirtle/Evolutions, Bulbasaur/Evolutions, Mew, And really nearly any of them, but these are the top of the list! Pokemon in costumes a plus!

Digimon - Any of the season 1 rooky forms, Veemon/flamedramon, renamon, guilmon, impmon, and again nearly any of the others.

Starfox - The whole cast!

Metroid - Kraid, Ridley, Space Pirates, Dark Samus, Mother Brain [Both Forms]

Mega Man - Any of the robots.

Smash Brothers - Kirby, Metaknight, King Dedede/his minions, K. Rool [or his minions!], Pit, Dark Pit, ROB, Duck Hunt Dog/Duck, Ryu/Ken, Inkling, Isabelle.

Undertale - Young Asriel, God Asriel, Torial, Asgore, Sans, Alphys, Flowy, Metaton, Ralsei, Suzie, Snowdin Shopkeep, Gerson, Grillby, Doggo, Lesser Dog, Greater dog, Dogamy/Dogaressa, many of the 'enemies'.

Resident Evil - Tyrant, G Tyrant, zombie, Licker, Hunter, Giant Spider, Ivy, Bandersnatch, Nemesis.

Silent Hill - Pyramid Head, Nurse, Valtiel, Incubus, Abstract Daddy, Closer, Lying Figure, Mannequin, Robbie the Rabbit, Numb Body.

Five Nights at Freddy's - Any of the animatronics, but bonus for Springtrap or Mangle.

World of Warcraft - Tauren, Forsaken, Orcs, Various Elvs, Goblins, Vulpera, Dreanei, Pandaren, various enemy races. [Sorry worgen, a furry butt without a tail just don't look right to me]

Other Video Game Characters - Conker the Squirrel, Bendy the Demon, Meowscular Chef [Monster Hunter], Fidget, Sereth [Dust: An Elysian Tail], Tom Nook, Gex the Gecko, Ratchet, Clank, Max [Sam and max], Reynardo [Stories: The Path of Destinies], Drift [anthro version, Fortnite], Deathclaw, Vivi [Final Fantasy IX], Reptile [Mortal Kombat, Anthro version], Shao Kahn, Shantae, Rottytops, Riskyboots, Banjo, Kazooie, Cait Sith, Moogle, Chocobo, Cheshire [American McGee's Alice], Vortigaunt [Half Life], Ori, Asura [Guild Wars].

SCPs - 372, 422, 1513, 2761, 1155, Plenty of others!

Star Wars - Yoda, Jarjar [yes that one], Gungans in general [they're cute!], Sebulba, plenty of aliens in general.

Star Trek - Klingon, Gorn, 8472, Ferengi, Borg.

The Orville - Kaylon, Krill, Moclan, Katrudian, Gelatin.

Alien/Predator - Xenomorphs, and Predators, naturally! Also: Xenomorph Queens and Facehuggers.

Disney Characters - Mickey, Minnie, Goofy, Max Goof, Donald Duck, Scrooge McDuck, Beast, Ursula, Simba, Mufasa, Scar, Ratigan, Bazil, Robin Hood, Sheriff of Nottingham, Prince John, King Richard, Sir Hiss, Jack Skellington, Oogie Boogie, Balloo [Talespin], Louie [Talespin], Sher Kahn [Talespin and Jungle book], Don Karnage, Quacker Jack, Negaduck, March Hare, White Rabbit, Cheshire Cat, Judy Hopps, Nick Wilde, Mr Hopps, Mrs Hopps, Tiger Dancers, Stitch, Jumba, Gantu, Grand Councilwoman, Lotso/Other toys, Sully, Mike, Randall, Waternoose, LIghtning McQueen, Mack, Eve, Joy [Inside Out]

Warner Brothers - The Warners, Bugs Bunny, Daffy Duck, Pepe Lepew, Tom, Sylvester, Porky Pig, Buster Bunny, Babs Bunny, Plucky Duck, Hampton, Fifi.

Dreamworks - Ogre Fiona, Puss 'n Boot, Master Tigress, Master Crane, Master Vipress, Lord Shen, Toothless, Oh [Home].

Dragon Ball Z - Picolo, Dende, Frieza, Beerus, Champa, Whis, Oolong, Puar, Gohan [Young or old], Goku [Young or old], Roshi, Bulma, Chichi.

Marvel - Rocket Raccoon, Groot, Venom, Carnage, Spiderman, Quill, Titus, Colossus, Nightcrawler, Ultron, Mantis, Captain America, Beast, Beta Ray Bill, Blackjack O'Hare.

DC- Beastboy, Robin, Superman, Harley Quinn, Poison Ivy, Cyborg, Shazam, Martian Manhunter.

My Little Pony - MLP characters in general.

Ninja Turtles - The turtles, Splinter, April, Leatherhead, Rocksteady, Bebop, Krang, Usagi.

Other Toons - Brooklyn, Lexington, Mr Peabody, The Grinch, Marge Simpson, Lisa Simpson, Bart Simpson, Maude Flanders, Brian Griffon, Rocko, Chance [Swatkats], Jake [Swatkats], Alvin, Simon, Theodore.

Other Canons - Mr Fox [Fantastic Mr Fox], Kristofferson [Fantastic Mr Fox], Hermione Granger, Wayne the Werewolf, Any of the races from Starbound, Endermen, Creepers, Any Orc or Monster from Bastard Bonds.