Super Smash Flash 2 Demo

In order to test everything coded within the game before the finale release, Cleod9 releases to public, after a certain period of time, the Super Smash Flash 2 Demo, a playable beta version of Super Smash Flash 2. New versions of the demo usually include several new features, such as new characters or stages, and many bug fixes.

Developer Demo
There exists a test demo for exclusive use to SSF2 Devs and SSF2 Balancers called Developer Demo, or devmo for short. Its main function is check traits of a demo before its public release, thus, removing a big number of serial bugs, adjusting the moveset of newly added caracters, making sure a stage's layout works correclty, etc. Because of its exclusivity, Devs usually love to mock non-devs in the McLeodGaming Forums showing them screenshots from the devmo, as well as spoiling them.