I have never been as equally "I love this" and "I hate this" about a game than I have about Mouse, On one hand, I think "evil Mickey" is really overdone and IMO they should've gone for either a different species or a different style of drawing mouse ears; and I'm just not really an FPS guy unless it's on-rails - but on the other hand, the combination of 30s cartoon styles and 30s gangster stories is absolutely perfect; 2D sprites on 3D backgrounds always hits well for me; and it's great to see more 100% black & white games out there - I especially like how they didn't pull a Madworld and make the blood red. (not that Madworld looks bad or anything, just that red blood would look out of place in this specific game)
It is my time