It’s not bad actually. Pretty good, pretty simple; you dive down, launch out of the water, do flips, upgrade, (watch ad), repeat. This would have made a fairly decent flash game.
I’ve found no problems whatsoever regarding the technical side of things, as the game plays very smoothly, but I find myself rather bitter that after every run you’re asked if you’d like to watch an ad to increase your earnings, then are made to watch an ad regardless of what you choose. However, I understand that is something that must be done to actually earn something from a free app, so I suppose I can look past that.
I can see myself playing this game idly in the future, and would recommend it to someone looking for a game that’s rather simple and straightforward.