A small arcade trip across the solar system

What makes each run different

Enemies do more than move in straight lines. Some rush forward, some pursue the ship, and motherships can bring escorts into the fight. Pickups change your weapons and defenses, while the Mars and Sun bosses give the route two larger battles. The game mixes these patterns across nine stages so that reaching a new planet changes the challenge.

The planets provide the setting and visual rhythm of the journey. They are stylized arcade artwork rather than scale models or a scientific simulation.

Made for the browser

The game runs in the browser with a canvas playfield and music generated with Web Audio. Keyboard, touch, and gamepad controls are supported. You can start without downloading software or creating an account.

This edition keeps its continuation save and Top 20 pilot board on each player's device. That means your records are available in the same browser, but they do not follow you to another device and are not published to a shared leaderboard.

Start or learn more

The How to Play guide explains the controls, upgrades, and save system. When you are ready, open the game and launch from Mercury. See the privacy page for details about local game data.