🎮PC: ⬅➡ Arrow keys or A/D to move, Space to shoot
📱Mobile: Use ◀ ▶ buttons to move and FIRE to shoot
👾5 rows of aliens — top rows are worth more (10-50 pts each)
🔫Shoot aliens before they reach the bottom — they shoot back!
🛡️Green shields protect you — but they break down from both sides
🛸Bonus UFO flies across the top — shoot it for 100-300 extra points!
❤️3 lives — game over if you lose all or aliens reach your ship
⚡Each wave is harder — aliens start lower and move faster