Deltarune Fight Simulator

How to start

A Deltarune fight in the full game gives the party FIGHT, ACT, ITEM, SPARE, and DEFEND, and the SOUL dodges inside a bullet box. This simulator is the dodge: move the heart and last as long as you can.

1. Press Play, then click the battle so the keyboard reaches it.
2. The title reads BATTLE SIMULATOR V3. Choose Desktop (keyboard controls) or Mobile (touchscreen controls). The prompt says click to select.
3. The main menu lists Start Game, View Leaderboards, and Save/Load Game. Arrow keys move, Z selects, and X goes back.
4. In the battle, the arrow keys move the SOUL. The screen keeps a difficulty label, Kris's HP, and a timer in seconds.

What the battle asks you to survive

Scube3000's instructions list four difficulties: Easy, Medium, Hard, and Hardest. The background song changes with the difficulty, and the project includes three songs. An update on the Scratch page says Ralsei and Susie will judge you. The same page lists save files.

The notes name the enemies in the project: Rudinn, Rabbick, Lancer, Rudinn Ranger, Clover, Jigsawry, Ponman, and Jevil. Jevil is the Hardest-only enemy. The separate Jevil fight on this site is tripoid's full battle, with ACT commands, rather than this survival timer.

DEFEND in DELTARUNE reduces damage and fills the TP meter. Ralsei's battle lesson says simply defending makes the attack hurt less and gathers TP. This simulator does not ask you to pick that command. You steer the SOUL for the whole round.

Boss battles after this one

The grid under this guide collects every deltarune boss fight on the site. Spamton NEO is the long Chapter 2 secret-boss page, and the one to open for a Spamton NEO fight simulator. Jevil is the Chapter 1 secret boss. The Chaos King and Lancer are the Chapter 1 card bosses. The Chapter 3 Knight is the later boss.