Doraemon: Nobita's Dinosaur 2006 DS is a card battle game. It is the first Doraemon game published by Sega and the last Doraemon game developed by Epoch Co. The player has to put the cards from the pocket into the deck. Then, he/she must select his/her card from the deck and attack the enemy side. Secret tools can help the player get bonuses (e.g. recover player's HP, inflict damage on enemy's team). Source: Wikipedia, "Doraemon: Nobita's Dinosaur 2006 DS", available under the CC-BY-SA License.