Twin Cobra mame arcade longplay mame 1 player

Twin cobra is very unique shooting plane games, 4 type weapon fo heli but enemy only have 1 type bullet. but it is very hard and need a lot of coin to continue till finish and loop to stage 1. this video is tutorial if you want to finish with 1 heli without death.
hint: use save state if you want to play easier, but if you still death every minutes, you will throw your stick.