Right now you can download the Dolphin Up game app for Android for free on Amazon. The app normally costs $3.10.
Swim and flip your dolphin to the moon and beyond! A fun, vibrant, 2-minute game with surprising depth, Dolphin Up lets you do amazing tricks with a porpoise. Successful flips, spins and tailslides build speed, allowing you to jump higher and soar into the stars. Perfect your landings and chain your tricks together to form huge combos, discover new possibilities and work your way up the leaderboards.