Updated to v0.6

Hey, been a while since I've been pretty busy. This both is and isn't a major change, I guess? The not major change is that no mechanics or features were really changed.

The major change is that I decided to revamp the first three (and currently only three) levels again, since it seems their difficulties were rather high for people unfamiliar with the game or controls. I've also decided to get rid of the slimes. I'm actually probably just not going to include enemies like that in general. I am planning on adding in a checkpoint system soon, but I feel like having a checkpoint system with destructable enemies would be awkward in a way. It might be similar with destructable environmental features (like walls you can only boost through), but we'll just have to see if and when I decide to add something like that. I am planning on adding more hazards though, and some will be dynamic!

My lack of artistic skills and also maybe a few other factors was absolutely zero factor in my decision to not have enemies lol.