Thunder Force IV is an action-adventure video game developed and published by Sega for the Sega Genesis. It is the fourth installment in the Thunder Force series and is a follow-up to the 1994 game Thunder Force II. The game is set in a new, updated world where the evil forces of the Dark Empire have taken over the world. You play as the protagonist, Captain Falcon, in an epic battle against the Empire's forces. Along the way, you'll encounter different characters and fight against evil beings such as the Dark Dragon, the Thunder God, and the Emperor. The game is set in a new, updated world where the evil forces of the Dark Empire have taken over the world. You play as the protagonist, Captain Falcon, in an epic battle against the Empire's forces. Along the way, you'll encounter different characters and fight against evil beings such as the Dark Dragon, the Thunder God, and the Emperor. The game is set in a new, updated world where the evil forces of the Dark Empire have taken over the world. You play as the protagonist, Captain Falcon, in an epic battle against the Empire's forces. Along the way, you'll encounter different characters and fight against evil beings such as the Dark Dragon, the Thunder God, and the Emperor.