For those interested in Double Dragon, it's probably also worthwhile to check out its spiritual predecessor Renegade and its spiritual successor The Combatribes, both developed by the same company (Technos Japan Corp.).
Combatribes is also an amazing game. In so many ways, it was better and more complex than Final Fight. Aso, the same complexity, make you feel you don't much control at sometimes, well, same happens on Final Fight, but then you have the desperation move.