MATECSKA

Game Boy (DMG) C · GBDK-2020 WebAssembly · wasmBoy 2026

A mental-math quiz for the original Game Boy: multiplication table, division, order of operations, unit conversion and time. A cat eats from the bowl you pick — and the wrong answers are the mistakes pupils typically make, not random numbers. Sets of five, topics to complete without a slip, levels to climb.

Controls: arrows = move · Z = A (choose) · X = B (back) · Enter = START. On touch screens the buttons appear below the screen. Progress is saved in your browser.
Open the game in its own tab →  ·  Download the ROM (.gb, 64 KB) →