Cartoon Network Punch Time Explosion is a game that was released on June 2, 2011 for the 3DS version. It was released for other console versions in November 2011 as xl. Though the series ended four years ago, Grim, Billy and Mandy appear as playable characters. This is the show's second known video game.
- Billy and Mandy
- Hoss Delgado (console version only)
- Numbuh 1
- Fred Fredburger
- General Skarr (console version only)
- Numbuh 2
- Numbuh 4 (console version only)
- Toadblatt's School of Sorcery
- Endsville Elementary School
- Kids Next Door Moonbase (console version only)
- Grim is voiced by Neil Kaplan.
- Hoss is voiced by Nolan North.
- Billy is voiced by Quinton Flynn (in the 3DS version). However, in the console version, Richard Steven Horvitz reprises his role as Billy.
- Numbuh 1 is voiced by Yuri Lowenthal (in the 3DS version). However, in the console version, Benjamin Diskin reprises his role as Numbuh 1.
- Alternate costumes include Grim as a clown (form Attack of the Clowns), Billy and Mandy as Billybot and Mandroid (from Billy & Mandy's Big Boogey Adventure), and Hoss Delgado as a zombie (from Billy and Mandy vs. the Martians).
- It's assumed this game is non-cannon, as in the game all the cartoons are portrayed as seperate dimensions, while in The Grim Adventures of the KND, they're all in the same dimension.