Remove! Level 2

If you don't konw how to play,please play level 1 first.
This is a new minigame!
You need touch/click to remove something for reaching the goal.
Instructions
Touch to remove a thing.
Pixels and plastic objects can't be removed.
Plastic polygens can't be removed,but can be modified.
Interactive objects can't be removed,but can be dragged if there's a dragfield.
Robots,command pads and resources also can't be removed.