Wow. Binding of Isaac is one of my all-time favorite games, so I was excited to try this. Then I saw that is was an actual Game Boy rom. Talk about going above and beyond- this is awesome! I put it on my Everdrive, and I'm actually playing it on my Game Boy Pocket. It's just insane that you pulled this off. OK, enemy variety is a little lacking, there's no audio and there isn't a boss exactly.... but how can I complain? You made an actual Game Boy game for the jam. Major kudos. Easiest 5/5 on Gameboy-ness imaginable.