What is the name of the ps1 game very similar to panzer dragoon?

I remember a game from my childhood on ps1 very similar to panzer dragoon where you flew a helicopter or ship fought enemies along a set path and fight a boss at the end of each level... i remember the first level you were in a city with high buildings... can anyone help me remember the name of this game as i wish to purchase re-play the game? All i can remember if it is any help, triangle triggered an instantly exploding bomb around the helicopter destroying most of the enemies on screen or harm the boss.What is the name of the ps1 game very similar to panzer dragoon?Spyro?