Games like Colorful Boi 2
Games like Colorful Boi 2 include Super Meat Boy, Celeste, Geometry Dash, Hollow Knight, and Jump King. We matched them by the tags players give Colorful Boi 2 on Steam (Action, Precision Platformer, Platformer, Difficult, and 2D): closest matches first, and among equally close ones the better-known games.

Super Meat Boy
Shared: Precision Platformer · Platformer · Difficult

Celeste
Shared: Precision Platformer · Difficult · Platformer

Geometry Dash
Shared: Difficult · Precision Platformer · 2D

Hollow Knight
Shared: Platformer · Difficult · 2D

Jump King
Shared: Precision Platformer · Difficult · Platformer

Super Meat Boy Forever
Shared: Action · Precision Platformer · Difficult

Skul: The Hero Slayer
Shared: Action · Indie · 2D

SANABI
Shared: Action · Singleplayer · 2D

Hollow Knight: Silksong
Shared: Difficult · Indie · 2D

Pizza Tower
Shared: Platformer · Indie · 2D Platformer

The End Is Nigh
Shared: Precision Platformer · Platformer · Difficult

VVVVVV
Shared: Precision Platformer · Platformer · Difficult

Cuphead
Shared: Difficult · Platformer · 2D

Shovel Knight: Treasure Trove
Shared: Platformer · Action · 2D

Katana ZERO
Shared: Action · Platformer · Indie

Pogostuck: Rage With Your Friends
Shared: Precision Platformer · Difficult · Platformer

Downwell
Shared: Precision Platformer · Platformer · Action

Electronic Super Joy
Shared: Platformer · Difficult · Action

Rogue Legacy
Shared: Platformer · Action · Indie

Gravity Circuit
Shared: Action · Platformer · 2D

Rogue Legacy 2
Shared: Action · Platformer · Indie

Mark of the Ninja
Shared: Platformer · Action · 2D

Nine Sols
Shared: Difficult · Action · Platformer

Broforce
Shared: Action · 2D · Platformer