Buzz Lightyear's three sidekicks from the animated series in which he starred also came along, followed by John Carter and Tars Tarkas.
Since all the heroes from classic westerns as well as science fiction gathered in one place, this made the Evil Emperor Zurg decide to announce to all the villains from the Buzz Lightyear of Star Command series, Star Wars, Star Trek, and the Thern and Zodangan warriors from John Carter; "All these heroes from across the television and film universe have gathered, yet we still stand galaxies apart! Are we going to let the heroes win the prize for biggest gathering of the year? I think not! Let us all gather on MY planet (PLANET Z!!!)!! And CURSE YOU, BUZZ LIGHT- Come on, say it with me!" -Now in unison, the villains all cried, "CURSE YOU, BUZZ LIGHTYEAR!"
Because the villains were all of the classic entitlement mindset, they all decided it wasn't fair unless they got to curse their arch enemies as well. So after the first cursing, there was a garbled mess of curses on Buzz Lightyear, John Carter, Captain Kirk, Luke Skywalker, Obiwan Kenobi, and Han Solo.