I just thought this might be usefull/interesting for someone.

The mouse cursor is not visible during the game, though you can still play the game. Things highlight when you move mouse cursor on them, so it is possible to choose new game or intro from the starting menu and play the game (though it is a bit more difficult 😉 ). In order to see the whole introduction you have to disable sound (otherwise it freezes). The mouse works very fast 😉