Shoot down the invaders — destroy the glowing vocab carriers to trigger bonus questions and earn power-ups!
👾Three enemy ranks worth 10 / 20 / 30 pts — red ones take two hits
📚Vocab carriers = 50 pts + a bonus question. Answer right for +100 and a power-up
🔥Chain kills to build a combo multiplier up to ×5 — don't get hit!
🛸Watch for dive-bombers peeling out of formation as waves heat up
⚡Catch falling power-ups: twin cannons, rapid fire, shield
⌨️← → or A/D to move · Space to fire · P pause · M mute — or drag on the screen