Mario and Luigi on Pokémon Island

Npc's

 * Adam Flyman
 * Barry B. Benson
 * Crash Bandicoot
 * Pink Guy
 * Knuckles
 * Squidward
 * Spongebob
 * Bowser
 * Yoshi
 * Shigeru Miyamoto
 * Sans
 * Steven (Steven Universe)
 * Razputin "Raz" Aquato (Psychonauts)
 * Ness
 * King Dedede
 * Kermit the Frog
 * Ganon
 * Waluigui
 * Jay Jay (Jay jay the jet plane)
 * Papyurs (Undertale)
 * Aku Aku
 * Luigui
 * Sandy Cheeks
 * Cranky Kong
 * Spring Man (Arms)
 * Ribbon Girl (Arms)
 * Donald Trump
 * Pearl (Steven Universe)
 * Pac Man
 * Elmo
 * Toad
 * Po (Teletubbie)
 * Shia Labuff
 * Toy freddy
 * Toy Bonnie
 * Toy Chica
 * Link
 * Toon Link
 * Sans
 * Yellow Guy (DHMIS)
 * Duck Guy (DHMIS)
 * Red Guy (DHMIS)
 * Notepad (DHMIS)
 * Mabel Pines
 * Rabbid Peach
 * Proto (Protengent)
 * Obama
 * Joel (Vinesauce)
 * Purple Man
 * Morty
 * Cortex
 * Buddy (The Incredibles)
 * Charizard
 * Ed (Ed, Eddy, Eddy)
 * Tommy Wiseau
 * Phil (The nutshack)
 * Jack (The nutshack)
 * Nick Wilde (Zootopia)
 * Gideon (Gravity Falls)
 * Double D (Ed, Edd, Eddy)
 * Eddy (Ed, Edd, Eddy)
 * Pussy Destroyer
 * Slippy Toad
 * Gabe Newell
 * Plautena (Smash U)
 * Demoman (TF2)
 * Vinny (Vinesauce)
 * Banjo Kazooie
 * Mr.Bean
 * Penguin (Adventure Time)
 * Arnold (Hey Arnold)
 * Dr.Eggman
 * Raven (That's so raven)
 * Garfield
 * Ms.Frizzle (Magical School Bus)
 * Flik (A bug's life)
 * Baby Blue Yoshi
 * Pink Guy
 * Matpat
 * Rabbit (Star fox)
 * Maui (Moana)
 * Fresh prince of la
 * Gary the Snail
 * Minnikyu (Pokemon)
 * Peter Griffin
 * Monkey (Toy story 3)
 * Terminator
 * Jasmine (Aladdin)
 * Danny Davieto
 * Jack Black
 * Dusty (Planes)
 * Mei (Overwatch)
 * Goofy
 * Fallout Guy
 * Nicloas Cage

Iteams

 * ? Block
 * Grapes
 * Fidgit Spinner
 * Cheetos
 * Coin
 * Pokeball

Enimies

 * Thwomp
 * Dirty Bubble
 * Bomb
 * Minion
 * Spider

Bosses

 * Black Jewel (Wario World)