I also had fun playing this game! I think the pacing of the game is stellar. The rooms are the right size, a good clip of enemies. Your sword also rotates smoothly (instead of chunking around like a true 64x64 resolution would) so it seems whatever resolution it was rendering to was higher than 64x64. But...the art was all made in the spirit of the Jam, even if a few elements don't technically fit the requirements. Great game! Easy to burn some time on.