From Microsoft: Featuring addictively simple gameplay, in Schizoid one person plays ‘red’ and the other plays ‘blue’. Each player moves his ship around the level as a seemingly endless stream of enemies attack. Each player can burst enemies of their own color merely through contact, but each player can be bursted by enemies of the other color. Both players have to “step up” on every level to handle the enemies of their own color, so their partner is not destroyed.