Personbox: Hammer Jump is an awesome physics-based skill game by BlackBean, the game is similar to the famous game Getting Over It with Bennett Foddy. The ragdoll physics man with box and hammer is trying to move to the target and he needs your help. The game will most likely probably be the closest to the real Getting over it unless the official one comes out.
Controls are a bit hard to use and a few places have glitches which makes it nearly impossible to do. If you get stuck in the game, check out the video walkthrough and gameplay for the game.