1kb AA Gun

You control a stationary anti-aircraft gun at the bottom of the screen. Your only job is to type the words that appear on incoming planes before they cross the screen and bomb your base. Each plane moves at its own pace, so you're constantly scanning the sky, matching letters, and hitting enter to fire. The words get longer and the planes come faster as you progress, creating a steady pressure. It feels like a focused race between your typing speed and the relentless march from right to left.