Trigonarium is a hardcore twin-stick shooter for fans of challenging arcade gaming. Fight your way through multitudes of enemy formations in constantly shifting battle arenas to face the colossal level bosses.Original campaign, a 3 world arcade mode to introduce you to the world of TrigonariumUltimate campaign, a 5 world super intense experience to push your skills to the limitChallenge modes for quick play sessionsLocal 2 player cooperative play available for all modesNote: The game can be played with keyboard or mouse/keyboard combination, but a controller is highly recommeded!