Plot: Eyeshield 21: MAX Devil Power is a Nintendo DS American football simulator released, oddly enough, exclusively in Japan in early 2006. The game is based on the manga Eyeshield 21, which was also represented in the Jump Super Stars series for the Nintendo DS, which Nintendo also published.
Plot: Master of Illusion, known in Europe as Magic Made Fun: Perform Tricks That Will Amaze Your Friends! and in Japan as Magic Encyclopedia, is a magician video game for the Nintendo DS. Wikipedia
Plot: Sujin Taisen: Number Battles, known in North America as Number Battle, is a puzzle/strategy video game developed by Mitchell Corporation for the Nintendo DS handheld video game console. By the end of 2007, Sujin Taisen sold 21,996 copies. Wikipedia
Plot: Personal Trainer: Walking, known in PAL regions as Walk with me! Do you know your walking routine? is a 2008 exergaming application developed by Nintendo Network Service Development and Creatures Inc. for the Nintendo DS. Wikipedia
Plot: Electroplankton is an interactive music video game developed by indieszero and published by Nintendo for the Nintendo DS handheld video game console. It was first released in Japan in 2005, and was later released in North America and Europe in 2006. Wikipedia
Plot: PictureBook Games: The Royal Bluff is a party video game developed by Japanese studio Grounding Inc and published by Nintendo for the Nintendo DSi's DSiWare download service. Wikipedia