CapStylePick separates line figures with flat endpoints from those with round endpoints. Each round places cross-like strokes on screen, and the prompt asks for either FLAT or ROUND caps. Tap the correct style to score. Tap the wrong style and you earn a mistake. Three mistakes end the run. Early levels keep endpoint differences obvious, but higher scores thin the strokes until flat and round caps look almost the same. Inspect tip shape carefully, ignore stroke color alone, and confirm the cap type before tapping. Clear matching endpoints as the board refreshes with subtler cues and thinner lines.