Games like 2 Ninjas 1 Cup
Games like 2 Ninjas 1 Cup include Celeste, Super Meat Boy, Geometry Dash, Hollow Knight, and Katana ZERO. We matched them by the tags players give 2 Ninjas 1 Cup on Steam (Action, Platformer, Ninja, 2D, and Memes): closest matches first, and among equally close ones the better-known games.

Celeste
Shared: Platformer · Difficult · Pixel Graphics

Super Meat Boy
Shared: Platformer · Difficult · 2D

Geometry Dash
Shared: Difficult · 2D · Platformer

Hollow Knight
Shared: Platformer · 2D · Difficult

Katana ZERO
Shared: Action · Platformer · Pixel Graphics

The Messenger
Shared: Platformer · Ninja · 2D

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

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

Pizza Tower
Shared: Platformer · Great Soundtrack · Action

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

Angry Video Game Nerd Adventures
Shared: Platformer · Action · Difficult

SANABI
Shared: Action · Pixel Graphics · 2D

The End Is Nigh
Shared: Platformer · Action · Difficult

Cuphead
Shared: Platformer · Difficult · 2D

The Binding of Isaac: Rebirth
Shared: Difficult · Pixel Graphics · 2D

VVVVVV
Shared: Platformer · Pixel Graphics · 2D

Mark of the Ninja
Shared: Platformer · Ninja · Action

Jump King
Shared: Platformer · Difficult · Action

Risk of Rain (2013)
Shared: Platformer · Action · Pixel Graphics

Undertale
Shared: Great Soundtrack · Pixel Graphics · 2D

Broforce
Shared: Action · 2D · Platformer

BlazBlue Entropy Effect
Shared: Action · 2D · Platformer

Electronic Super Joy
Shared: Platformer · Action · Difficult

NINJA GAIDEN: Ragebound
Shared: Action · Platformer · Ninja