The game and the medal work. The last puzzle was sufficiently like a final test. The only problem is the text is super-dark-grey on black, so as to be basically invisible, so the first instruction to hit space to play, and the final "congrats" text was hidden to me without major squinting.
The lack-of-jumping and basically turn-based nature of the puzzles was very appealing to me. I would've preferred it go longer once all the elements were introduced, but it was adequate.