Move: WASD / Arrows • Shoot: Space (hold) • Pause: P • Mute: M • Back: Esc

Campaign: Click nodes • Shop: Permanent upgrades • Boss: Weak points → core

Powerups: ✚ big heal • 🛡 big shield • ⚡ Overdrive (TEMP) • ✶ weapon+temp dmg • ₡ credits • 💥 NUKE (rare)