Games like Tobari 2: Nightmare
Games like Tobari 2: Nightmare include Planet of Lana, Rabi-Ribi, ICEY, TEVI, and Portal 2. We matched them by the tags players give Tobari 2: Nightmare on Steam (Action, Female Protagonist, Side Scroller, Puzzle, and Action-Adventure): closest matches first, and among equally close ones the better-known games.

Planet of Lana
Shared: Action · Female Protagonist · Puzzle Platformer

Rabi-Ribi
Shared: Female Protagonist · Anime · Side Scroller

ICEY
Shared: Action · Female Protagonist · Side Scroller

TEVI
Shared: Female Protagonist · Anime · Action-Adventure

Portal 2
Shared: Puzzle · Female Protagonist · Puzzle Platformer

Trine Enchanted Edition
Shared: Action-Adventure · Puzzle Platformer · Colorful

Trine 2: Complete Story
Shared: Action-Adventure · Puzzle Platformer · Puzzle

Rise of the Tomb Raider™
Shared: Action · Female Protagonist · Action-Adventure

Portal
Shared: Puzzle · Puzzle Platformer · Female Protagonist

Iconoclasts
Shared: Female Protagonist · Action · Indie

Freedom Planet 2
Shared: Female Protagonist · Side Scroller · Action-Adventure

Momodora: Moonlit Farewell
Shared: Side Scroller · Female Protagonist · Action-Adventure

Gensokyo Night Festival
Shared: Action · Female Protagonist · Indie

Tomb Raider Game of the Year
Shared: Action · Female Protagonist · Action-Adventure

SANABI
Shared: Action · Pixel Graphics · Action-Adventure

Chrono Gear: Warden of Time
Shared: Action · Female Protagonist · Anime

The Vagrant
Shared: Action · Female Protagonist · Side Scroller

CrossCode
Shared: Female Protagonist · Puzzle · Pixel Graphics

Skul: The Hero Slayer
Shared: Action · Indie · Pixel Graphics

Tribal Hunter
Shared: Action · Action-Adventure · Side Scroller

Bloodstained: Ritual of the Night
Shared: Female Protagonist · Action · Side Scroller

Momodora: Reverie Under The Moonlight
Shared: Side Scroller · Female Protagonist · Pixel Graphics

Touhou Hero of Ice Fairy
Shared: Female Protagonist · Side Scroller · Anime

Muse Dash
Shared: Female Protagonist · Anime · Colorful