Move inside an octagon and shoot bouncing projectiles to make music. Avoid your own projectiles to pass levels.

Headphones recommended. Runs best on Firefox and Chrome.




  • Move: Left stick
  • Shoot: Right stick
  • Start / Restart : Start

The game works mostly with XBox controllers. If it is not detected on start, try unplugging and replugging it.

Keyboard and mouse

  • Move : WSQD or Arrows
  • Shoot: Left click
  • Start / Restart : Enter



The game's code source is available on the Github repository.

Rated 5.0 out of 5 stars
TagsBullet Hell, Music


Download 68 MB

Development log

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I liked how balls with different colors travel at different speeds, how the center slightly moves whenever a ball comes back, so many little details that make it difficult to predict trajectories.

my solution to make it to the last level was to use that center-hit-displacement property to move the center closer to an edge, where it is less likely to be hit by random trajectories. there must be a better way to beat it though…?

also, loved the idea of making your own music through gameplay, and how you can feel the progression through levels.

great use of Tone+Phaser!


Thanks! There's actually no definitive winning strategy. It relies mostly on dexterity and, well, luck. Personally on the last levels I like staying close to the center. Sure, edges seems safer, but purple balls can quickly run along the walls and take you by surprise. Whereas on the center, there's more projectiles to avoid, but you kinda can see them coming.

I'm glad that you appreciated and, and were able to reach the end!