A stealth game in which you play a penguin. First, you can blend into scenarios by hanging around other birds, where you can be misidentified as just another bird. Second, you can press yourself down flat and slide on things to quickly make your way from hiding spot to hiding spot. Third, you can turn around or change direction to blend into high-contrast backgrounds.
The whole thing would have the tenor of a serious spy drama, just with a penguin, because you’re already wearing a tux. Powerups would include a newspaper and a businessman’s hat.