Oh I also found a glitch in the secret cavern. When you exit and then enter again, all the bytes you previously collected are still there. I don't know if it's supposed to do that...? Just thought I would say something about it.
The respawning & randomizing of the Bytes in the cavern was intentional, but I'm planning on removing that once the full game rolls around. I wanted players to have a way to get Bytes if they were very low on it. Lucky for you, you found Echo the Space Cat! There's only a 25% chance of encountering Echo so you're loaded with Bytes hahaha.