There are bugs to be aware of. When you lose, the MIDI data doesn't get erased; therefore, it overlays to games at once making it basically impossible to play due to the difficulty. When trying to retry, just refresh the page to fix that. Camp 2 in normal mode is missing the MIDI and music file, so you can either skip it or play Camp 1 in hard mode, as it is Camp 2 just harder. P.S. the fullscreen issue was fixed so you can play it windowed.