Under Shirt

Under Shirt (アンダーシャツ) is a recurring ability from the Mega Man Battle Network and Mega Man Star Force series. If the user's HP is above 1, the user will survive a lethal hit with 1 HP instead of being deleted. It first appeared as a Battle Chip in Mega Man Battle Network 2. From Mega Man Battle Network 3 onward it became a Navi Customizer program. In the Mega Man Star Force series it is an Ability Wave.

Other media
In Battle Story MegaMan NT Warrior, Lan used Under Shirt to save MegaMan from an attack of Gospel.