Game Modes
Campaign Study section by section. Each level covers one or a few textbook sections, up to 12 keywords that get harder as you go; clear it with hearts left to collect an item for your lab shelf.
Final challenge The last level: the whole syllabus in one run on Easy, Hard or Hell (you can skip straight to it). A wrong answer or running out of time costs a heart. Clear it for a bronze, silver or gold trophy and a place on the leaderboard.
Infinite Unlocked by clearing the final challenge. Practise any mix of units for as long as you like; your points are saved when you leave.
Hints
A correct answer is worth 10 points. In Infinite, each revealed letter costs 2 points and the Chinese meaning costs 4, but a correct answer always keeps at least 2. In Campaign and the final challenge a hint costs a heart instead, and Hell gives no hints.