Superman & Bugs Bunny #4, published by DC Comics in October 2000, concludes the epic crossover between the DC Universe and Looney Tunes. In this "Cwisis on Infinite Eawths," the combined heroes and cartoon characters must prevent their worlds from permanently merging. Bugs Bunny outsmarts Mr. Mxyzptlk, while the Do-Do makes a surprising choice. This issue is notable as the finale of the beloved limited series, featuring a unique blend of iconic characters in a universe-threatening adventure.