Get The Bird Level

This is found in level L, and can be entered from either side.

The button on the left side deactivates the red laser on the right side. The button on the right side activates the pink laser on the left side.

If you fill up the save room collector queue, and then place an item on the left side button, then enter through the right side door, the pink laser will not absorb the item, so you can access the Red Bird in the middle of the room.