One Btn Bosses

One Btn Bosses is a one-button game about Ace, an unpaid assistant who resists the big bosses for a fair paycheck. You pilot a ship through 50 handcrafted bullet-hell levels, fighting bosses to progress the story, rise through the ranks, earn Grind Points and unlock new ways to play. The campaign takes about four hours, and the game also includes a concise roguelike mode.

Pilot the ship

Your ship automatically orbits each boss. Press the button to change direction; changing direction less often makes the ship move faster, which also increases its firing speed. You need to defeat each boss before it gets angry enough to wipe you out. Boss fights are best-of-three, best-of-five, best-of-seven or other lengths, so you can try a different level rather than remain stuck on one fight.

Customize your attacks

Mix attack and movement upgrades to build a ship suited to each fight. You can dash instead of changing direction or fire a laser instead of bullets, with over 100 combinations to try. Unlock upgrades and customize your ship as you work toward beating the bosses.

Game modes

In R&D, also called Rifts & Developments or Rifts & Discoveries, you face randomly generated bosses. Each fight rewards new upgrades and power-ups. The game also includes leaderboards where you can compete for the best times.

Soundtrack

A synth-wave soundtrack accompanies the pilots' losses.