1) "options" and "quit" buttons in menu do nothing
2) i don't know if that's intentional but you can move while in a menu and you swing your pickaxe when you click on buttons
3) continue buttons loads up something that looks like loading screen but then it instantly switches back
4) opening in-game options switches your game out of fullscreen
5) character sometimes rotates super weirdly and sometimes it does not rotate at all
6) i somehow managed to mute my sounds even though the volume slider was on 100%
7) you can use pickaxe and sword simultaenously
8) clicking on start next mission starts the same mission again (propably because there is nothing like next mission)