"Johnny the Oval: Legends of Evil Circles and Squares" is an 6th video game released worldwide on PlayStation 2, Nintendo DS, Nintendo Wii, Xbox 360 on April 30, 2009. It is based on the TV series of the same name. The Game Boy Advance version was released shortly before it was cancelled. On February 24, 2017, the game was announced for PS4's backwards compatibility with PS2 to be added on April 12, 2017 and Xbox One's backwards compatibility with Xbox 360 to be added on July 31, 2017.
The evil squares and circles have invaded from the cave and they have taken over the earth, it's up to Johnny and his sister Holly to stop them.
- Jimmy (cameo)
- Timmy (cameo)
- Lucy (cameo)
- Sammy (cameo)
- Evil Circles
- Evil Squares
- Johnny and Holly's Room
- Hidden Cellar
- Ovalsburg Town
- Defender Girl
- High Skies
- Danger: Cliffs
- Circle and Square Robot Clones
- Circle and Square Cave
- Monster Blaster
- Ovals vs Circles and Squares
- The Final Level: Secret Shape Mission
- Final Battle: Circle-Square Bot
- Devon Starr as Johnny
- Andrea Libman as Holly
- Ashleigh Ball as Jimmy and Timmy
- Tara Strong as Sammy
- Kath Soucie as Lucy
- Jeff Bennett as Evil Circle Leader
- Eric Bauza as Circy
- Daran Norris as Corcy
- Billy West as SquareMan
- Dave Lib as Evil Square and Evil Square 2
- Tom Kenny as Evil Square Robot
- The Circles and Squares only appear in the video game
- This is the only time Johnny and Holly team up.
- This is the last video game to be released on Nintendo DS.
- Xbox 360 game has some achievements
- This is the first video game to be released on Xbox 360.
- This is the second PS2 game to be compatible with PS4 (via PlayStation Network). Also, this will be the first Xbox 360 game to be compatible with Xbox One.