Introduction

Sumo, but with robots! Ram your opponent and send them flying from the dohyō. Speed and finesse are your only weapons – but take care they're not turned against you!

Features

• Old-school competitive play: Local multiplayer for up to four players.
• Configurable game length: Play one round, or one-hundred!
• Single-player practice mode: Hone your skills in a stress-free sandbox.

Scoring

• 1-Player: Score is not kept in 1-Player mode.
• 2-Player: Gain a point whenever the other player falls out of the ring.
• 3- or 4-Player: Gain a point if you landed the last hit on the player who fell out of the ring. (It is possible for a round to conclude with no points scored.)

Controls

Main Menu

• UP/DOWN: Move cursor
• LEFT/RIGHT: Toggle selected option
• Z/X: Begin game

Game Screen

Player 1 (Blue)

• UP: Move robot forward
• DOWN: Move robot backward
• LEFT/RIGHT: Rotate robot
• Z/X: Restart game (practice mode only)

Player 2 (Red)

• E: Move robot forward
• D: Move robot backward
• S/F: Rotate robot

Players 3 (Yellow) and 4 (Green)

Joysticks or gamepads are required for 3- or 4-player games, as Pico-8 does not have native keyboard mappings for third- and fourth-player controllers.

• UP: Move robot forward
• DOWN: Move robot backward
• LEFT/RIGHT: Rotate robot

Other Notes

Robosumo is free to play online. Offline copies are available for download below. The offline version is identical to the online version.

This is a completed game, but minor code optimizations and aesthetic updates may be released in the future.