Thank you for your fair criticism! Being inspired by games with QWOP controls, being frustrating to control was definitely intended, but i agree that a couple of things could have been more forgiving or polished, especially regarding the stuffing hitbox. Out of curiosity, where did you see any z-fighting? If it's between the birds then yes, it wasn't planned to have multiple birds on screen at once to begin with, that was an idea that came up because of a bug xD