Change 50 of the white dots to green dots then press the door. See related link for screenshots.
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You beat level 5 by tilting your device until the ladder falls.
Check the related link for a guide on how to complete this level.
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Tap the door to open it. Tap the area behind the opened door to proceed to the next level.
You put your device flat on a table or just hold it parallel with the floor. Then slide the door to the right.
Shake your device until all of the lights above the door turn green. Then open the door.
Use the red pin from the previous levels and put it in the hole above the middle door. Then tap the door to open it.
Tip your device to the left as indicated by the picture above the door and the door will open. Congratulations...you just beat level 2.
Turn your device upside down until all the red dots turn green (it takes a little bit), then you can open the door.
Move the gates and balls so you can move the plant on the left of the door, then click the little white button. After that, slide the door to the left.