In Dolphin Olympics 2 you control a dolphin and have 2 minutes to perform tricks and gain as many points as possible. Timing, controlling your speed, maintaining combos and performing a variety of tricks are all crucial to getting a good score.
Game play in Dolphin Olympics 2 consists of using the arrow keys or WASD keys to move your dolphin causing him to jump, do various tricks, build a multiplier, and gain speed, allowing you to do more tricks. This is for the purpose of building up as high a score as you can, all within a two minute time limit. There is also a free swim mode which removes the time limit so you can hone your skills, but does not allow you to submit a highscore.
You can earn more points by getting other fish to follow your lead and jump out of the water. Magic rings both above and below the water give you a quick speed boost and can help you reach the dizzy heights of outer-space. If you jump high enough into space, you may pass various planets and streams of stars. You may star-slide on the stars, similar to tail-sliding on the water surface, in order to gain great speed boosts. If you get enough boosts, you might be able to reach the very top of the level and visit the restaurant at the end of the universe.