I also had the problem with freezing at one point, I think I was spamming buttons trying to find out what attack was because I didn't read the screen! It would have been better to have the attack on the keyboard like space or something since movement is on arrow keys (using the mouse feels weird on a platformer, especially if you're not using WSAD). Great attempt for a first Jam game and you're only young too! You have a bright future ahead of you! Well done dude :)