The boost power-up appears as stacked red arrows. When collected, it will increase your speed. You can usually find one before inclines.
Braking
Tap the "Brake" button when needed, such as when a row of crystals is approaching. This allows you to make sharper turns to collect all of the crystals. However, do not overuse the brakes or it will affect your completion time. Additionally, if you slow down too much, you may stop moving especially if there is an incline, which will end the level.
Gaining speed
If the tube is completely covered, you can move wherever desired on the slide. To build up speed quickly, remain on the portion of the slide where the water is flowing to increases your acceleration.
Hearts
You can find at least one heart power-up on every level. Collect them if you find them.
Invincibility power-up
Crabs and ducks will slow you down if you run into them. Collecting a crown power-up will allow you to be invincible, and destroy them during this time. This will result in bonus points.