SlenderMon

Story: You are just chilling catching Pokemon when you find a wild pikachu, but when you get into battle you get knocked out and wake up in the woods. It's your job to collect 10 Pokeballs and escape from the scary Pikachu.

Credits: Thanks to KAOS_S4nt0 on Sketchfab for making the Pokeball model. Also this game is obviously a Slender parody but it is mostly based off Slendytubbies.