The opening sequence should have subtitles and have a different background from that of the main menu, also a quit option is needed so the player doesn't have to alt+f4, using the mouse wheel to scroll the skills would be good so i don't have to press the number keys.
I didn't fight a single enemy, i just climbed the walls, got around everything and stole the idol.
Since this is your first jam try i'll sugest to make more lineal levels instead of going open world style since that's actually something hard to design, also stick to simplicity, it's better for one thing to work than a lot of things not working (maybe you don't need to make that many skills).