Tap letters on the wheel to spell a word, then Enter. Each letter can be used once per word. Make as many words as you can in 60 seconds. Every wheel hides a seven-letter word — find it for a big bonus.
3 letters: 4 points · 4: 7 · 5: 11 · 6: 16 · the seven-letter word: 25 — each plus the level.
Finding words fast from a few letters is "verbal fluency" — a classic measure of how quickly you can search your memory for words, the skill behind easy, fluent speech.