I'm unsure what the point of writing the code into the computer is, can you get more time, or something? Or more life? The combat is fun, it took me a couple minutes to figure out I'm suppose to just run into stuff (usually a bad thing in bullethells) The movement being fast feels good because of this, but the camera tends to lag behind a lot, especially if you've just come from the top of the map, can't see more than a few tiles below you.
WITH THAT SAID, this means you can fix everything with a few variable changes, which is awesome. The game itself is super fun. I'd love to see it taken to another level.