Jet Squadron (lost Sega Arcade game; 2000)
Jet Squadron was a cancelled Sega AM3 game that was shown at the AOU Amusement Expo in 2000. It was meant to be the third game in the Gunblade series, and was the successor to both Gunblade NY and LA Machineguns. The game would have had the traditional Gunblade gameplay, such as a dynamic camera angle, enemies with reactive AI, and aerial combat.
The game was never heard from again after its appearance at the AOU Amusement Expo, and no prototype or ROM of it has ever surfaced.
Screenshots did exist at one point, but the websites that had them have since been lost. Not even any footage of it at the AOU Amusement Expo has resurfaced.