Well, don't use all the explosives on the floor then!
You only need to explode the floor crates until there's 2 on top of each other. There's a lever thingie under the conveyor belt that will help you accomplish the task. Ping Pong anyone?
When you finish how about helping me escape from the 2 new room games I'm playing. AAAAHHHHH!!!!

Love, Jen
