Space Harrier 2 is the story of a guy with a huge cannon somehow flying around shooting even weirder stuff. By the way not in a plane or anything. He is just holding a cannon just shooting stuff. Also the usual is true here, either looks like the original, or an insanely well polished newer version.
Seriously this game is weird as hell check out my original review for Sega Forever Space Harrier 2 Sega Forever and that opinion hasn’t changed one bit. The game is pretty fun for the early style shooter it is, but it is still a weird concept. Best wishes and may the gaming gods bring you glory.