Caption: An internal view of the tank. At the bottom are a series of motorized dispensers which produce soap bubbles using ordinary children's bubble solution. However, the bubbles are filled with hydrogen rather than air.
The bubbles can also contain either oxygen or propane, and can be ignited by using one of the movable electric wands installed in the walls of the enclosure. If you successfully stab one of the fast-moving bubbles you're rewarded with a bang or an explosion of flame!
