1. Not all crabs are crabby, some are cheerful! Click on the green crab to watch him dance. 2. O is for octopus, so if you want to see this octopus swim, what letter on the keyboard do you need to press? 3. What is this starfish so scared of? Press the space bar to find out! 4. This fish has been specially trained to follow your instructions! Click on him, then move your mouse to the place on the screen where you want him to swim.