Below that, there should be a section that says "Play while you wait" followed by an icon with a balloon and "Hot Air Balloon". To the right of these, there should be a "Play" button. Tap that button and go ahead!
This is only the latest offline game created by Google for the greater good of IT professionals everywhere. Instead of flipping one's lid over a single app game offline or service's inaccessibility, a user is encouraged to wait while it's fixed, flying a balloon or running across an ancient world as a t-rex.