The Corridor Climber --Unofficial contest 3

It goes up.
-=-=-=-=-=-=-=-=-=-=-=-=-=-
~Challenge ~
Build a climber which can climb these walls.

~Rules~
-The level must allow derivatives.
-The level must be a derivative of this level.
-You can not use lua, thrusters, rockets, RCs or suction cups.
-You can not move or delete any of the pre built platforms or pixles but you can delete the other objects (you won't need them).
-The climber can have wheels or you can use you own ideas.
-The climber must touch both walls and hit the wall at the top.
-The climber must be built below the red pixel line.
-The climber can only be built on layers 2 and 3.
-Your entries must be published before 15th of August.

~Winners~