Baymax's Fighting Chip

Baymax's Fighting Chip was created by Hiro Hamada, contains data on various martial arts styles, granting Baymax the ability to fight with these moves. This chip was red with a skull-and-crossbones drawing on it. As opposed to Tadashi's chip, which made Baymax peaceful, the fighting chip causes Baymax to become an aggressive, single-minded killing machine if the green chip is not present. This personality surfaced when Hiro removed the green chip and told Baymax to destroy Yokai, which the formerly pacifist robot carried out without question. However, Honey Lemon found the healthcare chip and reinserted it back into Baymax, restoring the robot to his peaceful, nursing personality.

This chip was gone along with Baymax's original body inside the portal.

Trivia

 * In Kingdom Hearts 3, Hiro destroys the fighting chip after Sora and Baymax fought Dark Baymax aka the 1st Baymax.