Sumo Challenge (相撲挑戰)

An interactive sumo game for Japanese language classes. Answer 10 four-choice pre-match questions (6 history and sumo knowledge, 4 Japanese words), then face a Komusubi with fixed power in a 60-second match: a 6-second grapple, then a Japanese-word question pops up every 6 seconds of match time (nine in all), each with its own five-second answer window while the match clock pauses. 16-bit Japanese pixel-art rikishi push, retreat and shift across the ring while a gyoji with a gunbai fan watches.

It ships with the creator's official banks: 18 history and sumo knowledge questions and 21 Japanese word questions. Each game draws without repeats: 6+4 before the match, then 9 more Japanese-word questions not drawn earlier for the match. The banks are internal; players cannot browse them in advance.

Power bars, expressions and ranks update instantly. Exact power numbers stay hidden during the match; the result screen shows both final power values and the outcome, plus a review of the questions seen. Mouse, touch and keys 1–4. Traditional Chinese by default, with an optional English interface. Power tiers are a game design and do not represent real sumo promotion rules.