Triathlon
Move SpongeBob to the lower half of the level. Push boxes and beachballs along the indicated directions in the indicated order (1-9) to solve the first and second puzzle.
For the third puzzle, move Patrick to the top half of the level. Make your way up along the very left edge of the level. Stand just below the first tentacle, wait until it fires, then move one (!) step up. Stand there until the tentacle fire in the row above you passes, then move another step up and collect the Bonus Bubble. Wait again until the tentacle above you fires to make another step up, and repeat. It's important not to interrupt this pattern, or a tentacle will catch you. Push the box onto the purple button, and move back down the level along the right edge. Collect the Krabby Patties.