[s2e19] The Ultimate Sacrifice -

: The reset frees the sentient Ultimate forms from the Ultimatrix’s core, allowing them to exist as independent entities.

: Ben walks into a pit of "laser fire" intended to destroy him. However, the Ultimatrix recognizes his supreme act of selflessness. Resolution The sacrifice triggers a security reset of the Ultimatrix. [S2E19] The Ultimate Sacrifice

: While listed as S2E19 in some digital storefronts like HBO Max , this episode is also widely known as Season 3, Episode 7 in official production and broadcast orders. The Ultimate Sacrifice | Ben 10 Wiki | Fandom : The reset frees the sentient Ultimate forms

The episode begins during a standard battle where Ben, as , displays uncharacteristic brutality. It is soon revealed that a glitch in the Ultimatrix has caused the DNA simulations of the Ultimate aliens to develop their own consciousness. These "Ultimates" view Ben as their captor and attempt to trap him within the Ultimatrix to take his place. Ben's Choice Resolution The sacrifice triggers a security reset of

Inside the device, Ben is confronted by the sentient forms—including , Ultimate Spidermonkey , and Ultimate Big Chill —who feel they have been "born" into a life of combat and slavery. Realizing the gravity of their existence and the pain they feel, Ben makes a pivotal decision:

: Instead of dying, Ben is safely ejected from the device.