Instructions
Move each Sackboy onto one of the four switches so all switches are activated; the platform will ascend if done correctly.
Locate the four pictures that are on the wall. Move a Sackboy to the wheel next to each picture.
Turn each wheel so the image on the wall is matched by the word on the wheel; "Skull," "Egg," "Target" and "World" reading from left to right.
Go on to the platform beyond the now-open door. Pick up the prizes with which you have been showered. Drop down the tunnel and pick up the general Soldier item.