Goal: Defend the valley by shooting down numbers that are multiples of your target. Eliminate the giant "Monolith" boss before the countdown ends to complete the mission.

Controls: Drag your finger or use the arrow keys to move your ship. Tap the FIRE button or press Space to launch attacks.

How it helps: This simulation strengthens multiplication table mastery and mental math speed. It trains your brain to quickly identify numerical patterns while managing a fast-moving environment.