Cowabunga Candace is a online game on the Phineas and Ferb websites and is included in the "Phineas and Ferb Arcade" application for the iPhone iOS family. Candace wants to be to the surfing champion and impress Jeremy in the process. This game is based off Lawn Gnome Beach Party of Terror and has Candace in a similar swimsuit in the game.
Left makes Candace go to the left, right makes her go to the right, and space makes her jump over obstacles and make her perform tricks.
There are 3 colored balls that string together to make a trick (e.g., log roll or method). If you get them all in the row, you will perform that trick corresponding with the balls.
Phineas, Ferb, Isabella, and Jeremy will show up at times, but will not interfer with your game. If Jeremy is in the screen with Candace, you get double the points (e.g., a 200 point trick becomes a 400 point trick with Jeremy). There are tricks that are placed at random times. If you hit one you get a trick stored, but you only get 3 at a time. There are also obstacles that will hinder your performance. If you hit one, Candace will fall off and you lose one of your 3 tries. When you are out of tries, Isabella will come up and say "Rad surfing, Candace!", with Candace saying "Yeah, I know." However, this dialogue will not be seen in the iPhone iOS version. At the end, Jeremy will hand you a bronze silver, or gold trophy depending on your score. At this point, you will see Phineas and Ferb, and Baljeet on Jeremy's side and Candace's side has Isabella and other people.