Games like Rescue: The Beagles
Games like Rescue: The Beagles include Pizza Tower, Momodora: Reverie Under The Moonlight, Broforce, SANABI, and Ghosts 'n Goblins Resurrection. We matched them by the tags players give Rescue: The Beagles on Steam (Action, 2D Platformer, Runner, Side Scroller, and 2D): closest matches first, and among equally close ones the better-known games.

Pizza Tower
Shared: 2D Platformer · Cartoony · Action

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

Broforce
Shared: Action · 2D · Side Scroller

SANABI
Shared: Action · 2D Platformer · 2D

Ghosts 'n Goblins Resurrection
Shared: Action · 2D Platformer · Side Scroller

ANTONBLAST
Shared: 2D Platformer · Action · 2D

Webbed
Shared: 2D Platformer · Cute · 2D

Streets of Rage 4
Shared: Action · 2D · Side Scroller

Grapple Dog
Shared: 2D Platformer · Action · 2D

ICEY
Shared: Action · Side Scroller · 2D

20XX
Shared: Action · 2D Platformer · 2D

Gal Guardians: Demon Purge
Shared: Action · 2D Platformer · Side Scroller

Sonic Mania
Shared: 2D · Action · Colorful

Door Kickers: Action Squad
Shared: 2D Platformer · Action · 2D

Super Meat Boy Forever
Shared: Action · Runner · 2D

Twin Shot Deluxe
Shared: Action · 2D Platformer · 2D

Celeste
Shared: 2D Platformer · 2D · Indie

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

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

Nitro Express
Shared: 2D Platformer · Side Scroller · Runner

Momoka (wo) Wasshoi
Shared: 2D Platformer · Action · Runner

Cuphead
Shared: 2D · Action · Cartoony

Oozi: Earth Adventure
Shared: 2D Platformer · Action · Cartoony