A second beta began on December 5, 2008, and ended on December 7, 2008.
The open beta testing began on November 14, 2008, available to anyone with an account on Cartoon Network's website. The cards were rendered obsolete after April 16, 2010, when the entirety of the game became free to play players with unredeemed time cards were offered a refund for their unused cards. Playing past level five originally required a monthly paid subscription in the form of redeemable cards that could be purchased at participating retailers. Many characters are available as guides after players complete level four of the game. Gameplay primarily focused on the alliance between the heroes and villains of the Cartoon Network universe, featuring characters from Cartoon Network shows both past and present. The game had large playable environments, with travel facilitated by various warp points as well as certain temporary vehicles to get to areas faster.
Their character is viewed from a third-person perspective with an overlaid HUD.
In FusionFall, the player takes control of a customized avatar based on characters from current and past shows.
