Very cute, I enjoy the color palette :) I can't believe you made your own engine, this is so impressive :D Similar to someone below, I had issues "climbing" on platforms, the controls were going crazy sometimes. My character would walk left even without me keeping key pressed. I tried figuring our what causes the bug, but I didn't manage to find the source. Either way, great job! It came out very adorable and fun, even with limited time :D Good luck on developing the engine!