OddShapeOut refreshes groups of similar shapes with one odd shape mixed in. Tap the odd shape to score. Tapping a matching shape counts as a miss, and four misses end the run. Shape sets keep refreshing endlessly so your scan speed must stay sharp. Compare outlines first, spot the different form early, and avoid tapping crowded look-alikes. Careful odd-one hunting under endless refreshes decides how far each odd-shape loop can go.
Tap the odd shape among matches. Four wrong taps end the run.