Other source:
18 and Mighty Mask (Trunks and Goten) start to fight, and because they are able to use their arms and legs simultaneously as Mighty Mask, they have the upper hand against 18. But when she steps up the intensity, they can't keep up with her, so they decide to turn into Super Saiyans. This, of course, blows their cover, and they are disqualified. Now it is down to 18 and Hercule. Meanwhile, Dabura has finally finished his meditation, and is ready to fight Gohan.
