Shoot 'em up
Sega, Kyugo Boueki
| Up to 2 players, alternating turns|
4‑D Warriors, Konami '88, Act‑Fancer: Cybernetick Hyper We, 64th Street: A Detective Story, Acrobatic Dog‑Fight
Repulse is a 1985 arcade game by Sega. It was renamed 99: The Last War when licensed to Kyugo (who developed the hardware) and Proma. There's also a seemingly bootleg version of it named Son of Phoenix.
Repulse (arcade game) Wikipedia
With a spaceship, the player shoots several kind of robotic enemies and spaceships. At the end of every stage (except for the first one), the player meets a huge enemy spaceship as the stage's boss. Player's spaceship is equipped with a limited force shield which allows it to resist any kind of attack, though energy drains both while its active and whenever the ship gets hit during. Power-ups are dropped by ally helicopters and spaceships, that bring to the player a new shot (much faster than the normal one) and refills his force field's meter.