Pretty polished game, the good ole pleasing palette with minimalist graphics and square player character never fails to disappoint. I don't think this game does anything particularly interesting with the "corpses are platforms" concept, since the levels all boil down to "play through most of the level, clone, then play through it again but make the jump this time". That said, what the game does, it does it well. The platformer controls are tight, and the platforming is pretty fun at times. It is also cool how the cube fades to black to match the terrain. Great job on your first game jam though! It's good to start simple