| Left / A | Rotate left |
| Right / D | Rotate right |
| Up / W | Thrust |
| Space | Shoot (hold for auto-fire) |
| Down / S | Hyperspace |
| P | Pause / Resume |
| F2 | New Game (mode select) |
| 1–4 | Select game mode |
| ← / → | Change field size (mode select) |
Game Modes
Classic – 3 lives, progressive levels
Survival – 1 life, endless waves
Zen – Infinite lives, 3-min timer
Hardcore – 1 life, 1.5× speed, 2× score
Rock Types
N Normal – 1 hit to destroy
I Iron (grey, level 3+) – 2 hits, 1.5× points
C Crystal (blue, level 6+) – 3 hits, 2× points
X Exploding (orange, level 9+) – 2 hits, AoE on death
F Ice (white, level 12+) – 2 hits, slow zone on death
L Lava (dark, level 15+) – 3 hits, fire trail + patches
E Electric (yellow, level 18+) – 2 hits, EMP on death
Enemy Ships
U UFO (level 1+) – random or aimed shots
D Drone (level 5+) – kamikaze charge, spawns in groups
G Gunship (level 8+) – burst fire, strafing
M Mine-Layer (level 11+) – drops proximity mines
S Stealth (level 14+) – cloaks, aimed shots
B Boss (every 5 levels from 10) – multi-attack, high HP
Allies
A Fighter ally spawns every 5 levels (from 5). Follows you and shoots enemies. Max 2.
Powerups
S Shield – absorbs one hit
T Triple Shot – 3-way spread
R Rapid Fire – faster shooting
P Piercing – bullets pass through
W Spread Shot – 5-way burst
H Homing – bullets track asteroids
+ Extra Life
N Nuke – destroys all asteroids