Just bought the game off of steam, I am loving it.
However I have experienced the following bugs.
1. Cannot play in fullscreen. Also I think I am unable to change the resolution from the windowed mode.
2. The Quit command seems broken. I have to exit the game through other means.
3. The game crashes anytime I enter a warp zone. Going back into the game shows that the warp zone is unlocked, but I cannot play through it.
Im hoping these get fixed soon.