According to the description in the Youtube video:
Play as Agent Squeak, the dashing and debonair undercover mouse. Outsmart ferocious felines and crack fiendish challenges! Sneak, sprint and strategize in your quest to “reclaim” every precious piece of cheese.
The teaser trailer doesn’t show much other than silhouetted images of the mouse swimming within a cat’s innards, and it all ends with a “Coming Summer 2011” sign. Other than that, we know absolutely nothing about the game and how it will work; hopefully there will be more information regarding the release soon.
But given Firemint’s past casual game Flight Control, I’m very much looking forward to seeing what this is all about. For now, check out the teaser trailer and maybe even discover some hints we didn’t notice.