In these roles, players try to cooperatively solve a series of blue (easy), yellow (medium) and red (difficult) alerts to score points, attempting one of 6 different difficulty levels to win before failing five such alerts, or the Enterprise being destroyed. Players must deal with injuries which lock dice out of play, ship damage that can force players to attempt harder alerts, urgent events that must be completed in 3 minutes, the prime directive, as well as yellow and red alerts that force additional alerts cards to come into play pushing you closer to failing.