The main menu , transitions between scenes were good. I didn't find a quit/ menu button when i deliberately pressed the w key and even when playing. Wall jumps were not that good.
Yeah, the game doesn't have an in-game menu, although I don't really know why you would need one. W is a debug key I left in by accident that teleports you further into the level, it doesn't open a debug menu or anything if that's what you mean.