Games like Hunter Girls
Games like Hunter Girls include Celeste, Super Meat Boy, SANABI, Geometry Dash, and Touhou Luna Nights. We matched them by the tags players give Hunter Girls on Steam (Precision Platformer, Side Scroller, 2D Platformer, Mystery Dungeon, and Runner): closest matches first, and among equally close ones the better-known games.

Celeste
Shared: Precision Platformer · 2D Platformer · Difficult

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

SANABI
Shared: 2D Platformer · Action · Side Scroller

Geometry Dash
Shared: Precision Platformer · Difficult · Platformer

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

Downwell
Shared: Precision Platformer · 2D Platformer · Platformer

Super Meat Boy Forever
Shared: Precision Platformer · Difficult · Runner

BIT.TRIP Presents... Runner2: Future Legend of Rhythm Alien
Shared: Precision Platformer · Side Scroller · Runner

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

Thomas Was Alone
Shared: Side Scroller · Precision Platformer · 2D Platformer

Exit the Gungeon
Shared: Bullet Hell · Arcade · 2D Platformer

VVVVVV
Shared: Precision Platformer · 2D Platformer · Platformer

Prince of Persia The Lost Crown
Shared: 2D Platformer · Side Scroller · Precision Platformer

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

Afterimage
Shared: 2D Platformer · Side Scroller · Female Protagonist

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

Touhou Hero of Ice Fairy
Shared: Side Scroller · Bullet Hell · Platformer

Rogue Legacy 2
Shared: Platformer · Arcade · Difficult

Jump King
Shared: Precision Platformer · Difficult · Platformer

Rabi-Ribi
Shared: Bullet Hell · Side Scroller · Female Protagonist

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

Pogostuck: Rage With Your Friends
Shared: Precision Platformer · Difficult · Side Scroller

I wanna be the Creator
Shared: Precision Platformer · Platformer · Difficult

Bō: Path of the Teal Lotus
Shared: Precision Platformer · Side Scroller · 2D Platformer