@Cwod you need the injector to break quartz and rock. you should be able to upgrade it if you have the 3 mushroom types. check the right side of the blaster upgrade UI. It is something most people miss. That is on me, I should have made this clearer in the UI -___-

How does the screen glitch effect work? I assume it is probably through manipulating the screen data RAM right?

@AntArrow It simpler or more complicated depending on where you are coming from. As I am not very experienced with Pico8 or RAM manipulation I just read pixels with pget() and write them back in with an offset with pset().