Games like Rodent and Plank: Secret Origin
Games like Rodent and Plank: Secret Origin include Cuphead, Pizza Tower, Super Meat Boy, Rise & Shine, and Geometry Dash. We matched them by the tags players give Rodent and Plank: Secret Origin on Steam (Side Scroller, 2D Platformer, Bullet Hell, Shoot 'Em Up, and Twin Stick Shooter): closest matches first, and among equally close ones the better-known games.

Cuphead
Shared: Difficult · Platformer · 2D

Pizza Tower
Shared: 2D Platformer · Platformer · Funny

Super Meat Boy
Shared: 2D Platformer · Difficult · Platformer

Rise & Shine
Shared: Side Scroller · 2D Platformer · Bullet Hell

Geometry Dash
Shared: Difficult · 2D · Platformer

Touhou Luna Nights
Shared: Side Scroller · Bullet Hell · Difficult

Warhammer 40,000: Shootas, Blood & Teef
Shared: Side Scroller · 2D Platformer · Shoot 'Em Up

Celeste
Shared: Difficult · 2D Platformer · Platformer

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

Hollow Knight
Shared: Platformer · Difficult · 2D

Bit Blaster XL
Shared: Bullet Hell · Shoot 'Em Up · Difficult

SANABI
Shared: 2D Platformer · Action · 2D

Spelunky 2
Shared: 2D Platformer · Platformer · Difficult

Shovel Knight: Treasure Trove
Shared: Platformer · Side Scroller · 2D

Super Time Force Ultra
Shared: Side Scroller · Bullet Hell · 2D Platformer

Enter the Gungeon
Shared: Bullet Hell · Difficult · Twin Stick Shooter

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

Oozi: Earth Adventure
Shared: 2D Platformer · Platformer · Side Scroller

Gravity Circuit
Shared: 2D Platformer · Platformer · 2D

Anomaly Agent
Shared: Side Scroller · 2D Platformer · Platformer

Katana ZERO
Shared: 2D Platformer · Platformer · Action

The Messenger
Shared: Platformer · 2D Platformer · 2D

Thank Goodness You're Here!
Shared: 2D Platformer · Funny · Side Scroller

Touhou Koumakyou: New Classic - the Embodiment of Scarlet Devil
Shared: Bullet Hell · Shoot 'Em Up · Difficult