Refunct isn't kidding when it says "short". I personaly hit 100% (achievments and all) in just under a half-hour. However, this is still a very fun game. The platforming is intuitive and fun, while occasionaly thowing an interesting jumping puzzle at you. Replay value primarily comes from speedruning potential, which there is definitly a lot of. Overall, not a lot of game, but what's there is fun and I think worth the price tag, even more so during the 50% off sale going on at the time of writing.