Ace Combat 04: Shattered Skies is an aerial combat simulation. It allows the player to participate in semi-realistic dog-fighting with a collection of fighter jets including the F-22 Raptor F-16 Fighting Falcon F-117 Nighthawk U-2 Dragon Lady C-130 Hercules and SR-71 Blackbird. Eighteen missions will take the player from search-and-destroy buildings to one-on-one and all-on-all dog-fighting. Along the way it becomes possible to upgrade the fighter with defense systems deadly weapons and other accessories.