How to play

• Waves arrive from the top in formations; clearing a whole formation drops a weapon upgrade.
• Your gun starts single and grows to a triple spread and then to side shots.
• A hit costs a life and one level of your weapon, and grants a moment of invulnerability.
• Every fifth wave is a boss with two phases and a different pattern in each.
• Bullets are the danger, not the ships — most patterns have a safe gap.

Tips

• Stay low: you see the whole pattern and have time to read it.
• Move in small steps. Big dashes are what push you into a bullet.
• Against a boss, pick a side and orbit it instead of crossing the middle.
• Do not chase upgrades into a dense pattern; a lost life costs more than a stronger gun.