Initially, the company wanted to release this console as an experimental gaming device. Due to this enhancement, a broad selection of innovative games hit the market too. Nintendo DS came into retail in 2004 and featured a second screen that flipped up and could work with the primary screen. Pokemon Mystery Dungeon - Explorers Of Sky (US) Pokemon - Black 2 (Patched-and-EXP-Fixed) Pokemon - White 2 (Patched-and-EXP-Fixed)