Hi! I didn't finish the part after Sunny, so the game ends there for now. I forgot to add the teleport button, so unfortunately, the only way to go back is by pressing Esc and playing the game again. To skip the story, you have to hold L, but you don't need to hold Shift.
Thanks for the information; I'll be able to work on the next update, which will explain how to play the game. :)