Here's my game: https://itch.io/jam/gmtk-2019/rate/462343#post-853004
This was a result of asking myself: "What kind of game can I make in ~12 hours" after halfway through day 1 it turned out that I won't be able to work on Sunday for more than an hour or two (minus the time to build and upload the game, then fix some problem that would inevitably appear and reupload it). Because of that, I didn't have enough time to finish my original idea and "jumping game, but there's only one platform" was my next best thing. And I'm proud of how it turned out.