The Purple Game is a video game featured in the Rise of the Teenage Mutant Ninja Turtles episode, "The Purple Game". Donatello becomes addicted to the game, and April O'Neil is also shown to be a player.
The Purple Game was secretly developed by Donatello and April's tech-oriented arch-nemeses, the Purple Dragons. Don's character actions (and likely those of others) are mirrored by a giant mech which terrorizes New York City. Donatello's brothers are represented in-game as ineffective plush characters.
Despite learning his lesson and overcoming the Purple Dragons, Donatello spies an advertisement for The Purple Game 2, and once again becomes excited at the prospect.