The main problems here are that the 1) the jump feels uncontrollable, as I felt like I had little control over myself when I jumped, and oftentimes, I would try to jump onto a platform, only to rocket off the edge and land right in the middle of a group of enemies, 2) the ability to place and pick up blocks was dodgy, as I would often try to pick up a block and end up grabbing the one I was standing on from underneath me, or place one only to knock myself off the platform either to my death, or having to redo most of the platforming all over again, and 3) the on-ground movement felt incredibly slippery, and felt like it lacked quite a bit of traction.
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