Dinosaur King

Dinosaur King (古代王者恐竜キング, Kodai Ōja Kyōryū Kingu, literally "Ancient Ruler Dinosaur King") is a card-based arcade game from Sega that uses the same gameplay mechanics from Mushiking but uses super-powered dinosaurs instead of beetles. The game was revealed in JAMMA 2005 and is available in Japanese and English versions. A Nintendo DS version has also been released.

The series has been adapted into an anime television series, Ancient Ruler Dinosaur King DKidz Adventure (古代王者恐竜キング Dキッズ・アドベンチャー, Kodai Ōja Kyōryū Kingu Dī Kizzu Adobenchā). A sequel was announced called Ancient Ruler Dinosaur King DKidz Adventure: Pterosaur Legend (古代王者恐竜キング Dキッズ・アドベンチャー翼龍伝説, Kodai Ōja Kyōryū Kingu Dī Kizzu Adobenchā: Yokuryū Densetsu)," which debuted February 3, 2008 in Japan. The show ended its run in Japan in late 2008.

Plot
Dr. Spike Taylor was on a paleontology mission in Africa with his son Max and Max's friend Rex. Max discovers stone slabs and finds dinosaurs are calling them for help. An evil organization called the "Alpha Gang", led by the nefarious Dr. Z, traveled back in time to hunt down the dinosaurs and use them to take over the world. It is up to Max and Rex to travel around the world, defeating Dr. Z and the Alpha Gang while hunting down the dinosaurs (Later, the story varies as the arcade game machine keeps on upgrading).