Games like Ninja Kunoichi
Games like Ninja Kunoichi include Teenage Mutant Ninja Turtles: Shredder's Revenge, PUBG: BATTLEGROUNDS, Streets of Rage 4, Rain World, and Warhammer 40,000: Shootas, Blood & Teef. We matched them by the tags players give Ninja Kunoichi on Steam (Side Scroller, 2D Platformer, Beat 'em up, Survival, and Heist): closest matches first, and among equally close ones the better-known games.

Teenage Mutant Ninja Turtles: Shredder's Revenge
Shared: Beat 'em up · Side Scroller · Ninja

PUBG: BATTLEGROUNDS
Shared: Survival · Shooter · PvP

Streets of Rage 4
Shared: Beat 'em up · Side Scroller · Action

Rain World
Shared: Survival · Difficult · 2D Platformer

Warhammer 40,000: Shootas, Blood & Teef
Shared: Side Scroller · 2D Platformer · PvP

SANABI
Shared: 2D Platformer · Action · Side Scroller

NINJA GAIDEN: Ragebound
Shared: 2D Platformer · Side Scroller · Ninja

Sifu
Shared: Beat 'em up · Martial Arts · Difficult

Momodora: Reverie Under The Moonlight
Shared: 2D Platformer · Side Scroller · Difficult

Lost Castle
Shared: Side Scroller · Beat 'em up · PvP

Don't Starve Together
Shared: Survival · Difficult · Adventure

Kung Fury: Street Rage - Ultimate Edition
Shared: Beat 'em up · Side Scroller · Arcade

Rust
Shared: Survival · PvP · Adventure

Terraria
Shared: Survival · 2D · Adventure

Nitro Express
Shared: Side Scroller · 2D Platformer · Beat 'em up

Blasphemous 2
Shared: 2D Platformer · Side Scroller · Difficult

Anomaly Agent
Shared: Side Scroller · 2D Platformer · Action-Adventure

NARAKA: BLADEPOINT
Shared: Martial Arts · PvP · Survival

Shank 2
Shared: Beat 'em up · Side Scroller · Action

Broforce
Shared: Side Scroller · Action · 2D

Unruly Heroes
Shared: Beat 'em up · 2D Platformer · Side Scroller

SHINOBI: Art of Vengeance
Shared: 2D Platformer · Ninja · Side Scroller

Celeste
Shared: 2D Platformer · Difficult · Indie

Alex Jones: NWO Wars
Shared: 2D Platformer · Side Scroller · Shooter