I think I watched this movie back in 1994-1995. It was on two VHS tapes, I remember that. Overall the animation felt like superhero cartoons from the 80's. It was a Russian dub, but the original language was English.
There was a city protected entirely by a force field shield, and bad guys were constantly attacking it but couldn't penetrate the shield. The whole movie was futuristic and they used some kind of flying cars for warfare/travel. I think the whole setting was on another planet.
The main cast of characters had super powers. One of the good guys had power to become invisible and walk through walls.
The bad guys were race of alien reptile-like creatures, and had a warrior that had a flamethrower installed into his mouth. He had tubes connected to his cheeks that supplied fuel for flamethrower and were attached to his fuel tank he was carrying.