Spot the Odd

How to play

1. Look at the grid and tap the one shape that is different.
2. The difference is in shape or rotation, never colour alone.
3. Every correct tap shows a new grid; grids grow every 6 correct taps.
4. A wrong tap costs 2 seconds. Score = correct taps in 30 seconds.

About

A grid of identical shapes. One differs by shape or rotation — never by colour. Tap it to get a new grid. Grids grow from 3×3 to 5×5 as you score. A wrong tap costs 2 seconds. How many can you spot in 30 seconds?