I made something quite simple, but I think I'm fairly satisfied. It's at least relatively polished compared to my previous games (i.e., not unfinished). It's a fast-paced arcade game where you're a byte following the patterns they send your way. The only thing that's bothering me is that I don't think I was able to tune the difficulty very well, and it might be too difficult. I wasn't able to make the XOR mechanic interesting enough without making it difficult at the later levels. I'm interested in knowing if you manage to beat all levels.
Anyway, congratulations to everyone who's finished this Pyweek!