Games like Mamorukun ReCurse!
Games like Mamorukun ReCurse! include BALL x PIT, Sky Force Reloaded, Planes, Bullets and Vodka, Touhou Kouryudou ~ Unconnected Marketeers., and Mirage Feathers. We matched them by the tags players give Mamorukun ReCurse! on Steam (Action, Arcade, Shooter, Shoot 'Em Up, and 2D Platformer): closest matches first, and among equally close ones the better-known games.

BALL x PIT
Shared: Action · Arcade · Bullet Hell

Sky Force Reloaded
Shared: Arcade · Shoot 'Em Up · Action

Planes, Bullets and Vodka
Shared: Action · Shoot 'Em Up · Arcade

Touhou Kouryudou ~ Unconnected Marketeers.
Shared: Action · Shoot 'Em Up · Bullet Hell

Mirage Feathers
Shared: Cute · Shoot 'Em Up · Bullet Hell

Nova Drift
Shared: Shoot 'Em Up · Arcade · Bullet Hell

Bit Blaster XL
Shared: Shoot 'Em Up · Shooter · Arcade

Revolution Ace
Shared: Action · Shoot 'Em Up · Shooter

Mushihimesama
Shared: Arcade · Action · Shoot 'Em Up

DoDonPachi Resurrection
Shared: Shoot 'Em Up · Shooter · Arcade

Ikaruga
Shared: Arcade · Shoot 'Em Up · Action

Phoenix Force
Shared: Bullet Hell · Arcade · Shoot 'Em Up

Waves
Shared: Shoot 'Em Up · Shooter · Arcade

Alex Jones: NWO Wars
Shared: Action · Arcade · Shooter

Nex Machina
Shared: Action · Arcade · Bullet Hell

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

LUFTRAUSERS
Shared: Arcade · Action · Bullet Hell

BLUE REVOLVER
Shared: Action · Shoot 'Em Up · Arcade

Deathsmiles
Shared: Action · Arcade · Shoot 'Em Up

Sektori
Shared: Arcade · Shoot 'Em Up · Bullet Hell

Crimzon Clover World EXplosion
Shared: Action · Arcade · Shoot 'Em Up

Touhou Tenkuushou ~ Hidden Star in Four Seasons.
Shared: Bullet Hell · Shoot 'Em Up · Arcade

Assault Android Cactus+
Shared: Shoot 'Em Up · Bullet Hell · Shooter

ESCHATOS
Shared: Shoot 'Em Up · Shooter · Arcade