Elevator Action Deluxe Stage 2-1 through 2-5 All Gold Medals

The second set of stages. For the trophy 'Combo Master', go to Stage 2-4. pick up a bomb, but don't turn off the lights (this is important). Go down to the third level, and get the red suit on each side to notice you. Once you have dual alarms going, place the bomb near one of the doors, and hide inside it. You won't get the trophy until after you complete the stage though, so don't think it didn't work.