ULTRAKILL: UNDERGRIND

A fast-paced offline 2D fighting game inspired by the movement style of Undertale.

Face heart-shaped enemies (Souls), unlock different abilities, and build your own battle scenarios with customizable backgrounds and enemy setups.

Core Features

Heart-Type Enemies: Each soul has unique attack patterns and behavior.

Weapons System: Swap between multiple weapon types with different attack speeds and ranges.

Dash & Slide: High-mobility combat that rewards quick reactions.

Custom Battles: Create your own encounter by choosing any enemy and background.

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GAME MODES

QUICKRUN MODE

You don’t defeat the enemy — you escape.

If the enemy hits you even once, you lose.

The longer you survive, the more P you earn.

SANDBOX MODE

No enemies.

No combat.

Just experiment freely and try dealing damage to the Hampter dummy.

CHALLENGES

Test yourself against extremely strong enemies.

Designed for players who find normal enemies too easy.

The ULTRAKILL by arsi "hakita" patala