Great entry! I did encounter some issues however which then also stopped me from playing through the game unfortunately.
First bug I encountered was by loading during having cooldown on my spear. The Cooldown will then get stuck, even in the loaded game. Once you restart the game, it fixes the bug.
The more severe issue was invisible walls. If I load the game I get invisible walls which I cannot pass anymore. There is this huge underwater room with the key at the top. You enter the room by jumping into a tile in the center of the room and going down. and then forward. However that was not possible anymore after reloading. I then replayed the game to the same point and it worked again. I saved, but died at a point later, reloaded, and now had a different invisible wall I couldnt pass. So basically load/save wasn't possible for me as it broke the game.