Before going to fight against the Grandmaster's champion in the Sakaaran Arena, Thor was equipped with a collapsible helmet along with the rest of his weapons. Thor activated the helmet while waiting for his opponent, who turned out to be the Hulk. Although Thor tried to avoid the fight by having Bruce Banner's personality resurfacing, he was forced to duel against his friend. Despite the violence of the hits they exchanged, Thor managed to keep his collapsible helmet on during most of the fight, but he ultimately lost it when he got pinned to the ground and Hulk severely beat him up.
- The helmet shares a similar design to the Winged Helmet that Thor wore during his coronation ceremony.