Coins are wirth 10 points. Collect 20 coins, and you gain an extra life.
Springs help you bounce higher.
Propellers allow you to fly up quickly for 3 seconds, chopping up any enemies that get in the way of your blades. Each enemy you kill before jumping again gains you bonus points. Gain enough bonus points and you gain extra lives!
Zero Gravity Orbs
These orbs reduce gravity for several seconds, allowing you to reach higher platforms that might otherwise be out of reach.