Gutsu's Cart is located in the Dojo section of the market on the IOS version. He sells you various power-ups to help improve your game performance:
Power-Ups
Bomb Deflects - "Deflect Bombs off screen with this skillful ninja move."
Berry Blasts - "Strawberries will explode when you slice them, and are work 5 points!"
Peachy Times "Peaches will give you extra time in Arcade and Zen mode."
Starfruit
Power-Ups can be purchased for Sarfruit. When you start, you are given 1,000 starfruit, but afet that, you have to purchase them with real money.