To play a phase use the arrow keys to navigate and press z on the green buttons to play them. You cannot play red buttons. You have to use your mouse button to turn Easy Mode off and on. Having easy mode on means you heal all your HP when you fight. This is useless on phases 5, 6, and 7. Z to skip dialogue. Space to see scores. I messed up the code and now Papyrus doesn't appear at the start. It might only be mine, but it's annoying.
This one actually took a LOOOOONNNNG time to hack.
