Fly through water and air to collect tokens. Relaxing and addictive. Starts slowly, but if you can get a score of 20, you're a master!
EDIT: This game was originally created for GMG's 3-word contest. It won second place in the competition!
I have begun work on a slightly improved version called Depth: Delta. It can be found in the "more games by this creator" section of this page.