Ultimate Aggregor... Again/Info

This is the info page for Ultimate Aggregor... Again.

Major Events

 * Phineas and Ferb appear, making this the first crossover in BTMT.
 * Ben and Co. defeat Aggregor, who is absent for an entire season.
 * Paradox brings the Potis Altiare, making this an extension of the Potis Altiare Arc.

Heroes

 * Ben
 * Gwen
 * Kevin
 * Azmuth
 * Paradox
 * Ship
 * Max

Phineas and Ferb Characters

 * Phineas
 * Ferb
 * Isabella
 * Baljeet
 * Buford
 * Candace

Villains

 * Aggregor
 * Doofenshmirtz and his negative counterpart (mentioned)

Aliens Used

 * The Ultimate Alien (2x)

Trivia

 * All Phineas and Ferb characters mentioned are canon to the show, except for Nega-Doof, who is my creation from the fanon wiki.
 * This is the first episode in BTMT to have only one alien used.