The only issues that I really had with it were that the player moved really slowly and had it's camera too close to the ground as well as not being able to stand on top of the moving platform as it would just move without you. The health in the second scene capped off before hitting 100 and the enemy could just be knocked over and rolled off the edge. Other than those issues that, I'm sure, could have super easy fixes, these mechanics could work rather well and are interesting in their own right.