In 2004, Konami released "Metal Gear Acid", which combined the stealth game elements of the "Metal Gear" series with turn-based tactical RPG gameplay of games like "Fire Emblem", "Final Fantasy Tactics", and "Disgaea", along with the random-draw, forethought and resource management appeal of card battles like in Konami's own "Yu-Gi-Oh!" games (1999 onwards). Developer Kuju Entertainment released "Dungeons & Dragons Tactics" for the PlayStation Portable in 2007. The game intended to adapt the rules and mechanics of the popular table-top role-playing game, "Dungeons & Dragons", but suffered from a poor interface and awkward camera controls.