|"Oh my gosh! , this is bad!" – Dukey|
|Season 5, Episode 22a|
|United States Airdate:||April 4, 2012|
"Johnny Test's Quest"
"It's Du-Kay Johnny"
Johnny- O's is the first part of 89th episode and the 177th episode over all.
Johnny is upset about the lame toys found in cereal boxes, so he makes his own cereal, Johnny O's and there are real alien blasters found in each boxes and everybody is protected against space invaders, but who will save the town from it's citizens?
- This episode parodies toys that come with cereal as being cheap and rushed, with no actual effort put into them other than as marketing ploys.
- Dukey mentions the real life mascots and slogans of Kellogg's or Post cereals: Bears (Golden Crisp), tigers (Frosted Flakes), toucans (Fruit Loops), frogs (Honey Smacks), ""They're Soy-tastic!" (Frosted Flakes' "They're GGggrrreat!") and "Don't touch my Johnny-O's (Eggo's "Leggo my Eggo!").
- When the aliens invaded, Johnny could've called the girls and told them to hold off the plan until the aliens were dealt with.
- In this episode, Mr. Black and Mr. White don't believe in aliens but in Johnny's Winter Jacket, they did believe in them.