Zombie Banjo is a glitch in Banjo-Kazooie and Banjo-Tooie that lets you survive the death animation by interupting it with an action that overrides it. In this iteration, you can use a grenade egg to kill Banjo before the cutscene for the screw unbolting starts and that allows you to continue the game with only 0 health. Unlike Banjo-Kazooie, switching screens or using the pause menu will not regenerate your health in Banjo-Tooie, so you can continue to have 0 health until you either take damage again or attack an enemy, oddly.