I enjoyed it. Gameplay is fun, and I really liked the procedural animation with the character's head and legs. I will say that I didn't feel the theme that much, I don't think the "random dimension" added much, since all the dimensions felt the same to me. If I were going to improve, I would add differences to each dimensions with special rules (maybe A and D are swapped) and/or different biomes (lava pools to avoid). I would also add a score and a non-endless mode. Great job!