1. Smash the most blocks of the upper blue row. Leave some, you will need them to go back to the left without smashing the lower blue row.
2. Push the apple to the right, then jump left on the remaining blue blocks. The apple bomb will follow you, fall down and destroy the two skulls.
3. Take the power heart. First smash four green blocks, then the middle red one. Use the star switch to release the pumpkin which will fall down and destroy the red blocks.
4. Go up and destroy all blue blocks.
5. Smash the last blue block from below. Rush down to the green color switch. You have to be very fast so keep the Thrust key pressed. Thrust = SPACE, CTRL or SHIFT. Bounce up to the left and destroy the remaining green blocks.