Occurs in the short-lived spin-off series JBVO. Long story short, Johnny does a recap of an entire episode of Dragon Ball Z... in fast forward.
Johnny getting the last laugh on "The Sensitive Male" by telling Sheldon's three girlfriends how he has been cheating on them with each other. They beat Sheldon up, put him in a Tribal Carry, and take him away.
Johnny beating up the Monster Clown in "The Man Who Cried Clown", even if it did bite him in the ass.
Johnny beating up a kangaroo poacher.
In the pilot, Johnny manages to not only survive, but utterly defeat an alligator at the zoo. This way before his flanderization set in.
Johnny filling in for Santa and delivering Presents on Christmas. What makes it awesome is that unlike you'd expect it to go, he does it almost (He accidentally switched the presents meant for the Mayor's Wife [A big honking diamond ring] and Johnny's Mama [Bunny Pajamas) perfectly.