Season
Episode
- Episode 1: Johnny vs. Bling-Bling Boy 3
- Episode 2: Stinkin' Johnny
- Episode 3: Johnny X and the Attack of the Snowmen
- Episode 4: Johnny vs. Dukey
- Episode 5: Here Johnny, Here Boy
- Episode 6: Johnny Applesauce
- Episode 7: Johnny'mon
- Episode 8: Bath Time for Johnny
- Episode 9: Johnny Test: Monster Starter
- Episode 10: Johnny Holiday
- Episode 11: Coming to a Johnny Near You
- Episode 12: When Johnny Comes Marching Home
- Episode 13: Johnnyitis
- Episode 14: Johnny Mustache
- Episode 15: Johnny Fu
- Episode 16: Johnny Escape From Bling-Bling Island
- Episode 17: Johnny's Monkey Business
- Episode 18: Johnny Bench
- Episode 19: Johnny Long Legs
- Episode 20: Johnny Test in Outer Space
- Episode 21: Johnny Kart Racing
- Episode 22: Johnny Smells Good
- Episode 23: Return of Johnny'mon
- Episode 24: Johnny Dukey Doo
- Episode 25: Johnny X: A New Beginning
- Episode 26: Johnny X: The Final Ending
Johnny Test Season 3 Johnny X: A New Beginning
Young Johnny is gung-ho and full of courage. Johnny's brainiac twin sisters, Susan and Mary, use Johnny as their guinea pig for their outrageous scientific experiments. If they can dream it up, Johnny will do it; as long as his genetically engineered super dog, Dukey, can come along.
