Of course you can! It's even mentioned in the store page description. The only thing you're not allowed to do is resell it as an asset pack, anything else is fair game, commercial or otherwise.
(And just for the record you are allowed to use all of the sprites/music that comes bundled with the code in a commercial game as well, though since a lot of it are placeholder-ish I can see why you'd wanna replace them :P)