Microsoft is now requiring Terms of Service for each of app registered in the Microsoft Store, in addition to their own ToS, so here they are:

You may play the game. You may also, although you are not required to, enjoy the game. I make no assurances the game will work on your computer or xbox or phone or whatever device you are running the game on or that you, or anyone you know, will actually have fun.

Unless specifically noted, the assets that have been used to make the game belong to me, so don't steal them and use them in your own game. That's not cool. Not sure why you'd want to, really, it's all programmer art, anyhow. Also, don't steal the entire game and market it as your own. That's even less cool.