It is usually unlocked by beating battle stage 11. More individuals can be purchased in the game's store or through card packs. Since June 10, 2015, a Level 40 Koolasuchus could be mixed with a Level 40 Sarcosuchus to make the hybrid Koolasaurus. Although both of them lack saurus as a last name but this may be due to them both having suchus as the end part of their names.