Arcade Video game published 35 years ago by SEGA Enterprises

Repulse screenshot

Listed and emulated in MAME !

Repulse © 1985 Sega.

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 bootleg version of it named Son of Phoenix.

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 it is active and whenever the ship gets hit during use. Power-ups come in the form of ally helicopters and certain spaceships, that bring to the player a new shot(much faster than the normal one) and refills the ship's force field meter.
Main CPU : (2x) Zilog Z80 (@ 4.608 Mhz)
Sound Chips : (2x) General Instrument AY8910 (@ 1.5 Mhz)

Players : 1
Control : 8-way joystick
Buttons : 2
=> [A] Shoot, [B] Shield
Repulse was released in June 1985.

Default high-score :
1 50000 (Ichiban)
2 50000 (Niban)
3 50000 (Sanban)
4 50000 (yonban)
5 50000 (goban)

Licensed products:
'99 The Last War (Proma)
'99 The Last War (Kyugo)

Known Bootlegs/Hacks:
Son of Phoenix (Associated Overseas)
* Power-up : After the middle of each stage there's a helicopter (a plane on 1st stage) that drops a power-up item. So, don't destroy it until it releases the power-up. Be careful with the helicopter scrap after destroying it, it can kill you.

* 1up player : At the 2nd and 4th stage there is a chance to pick up a 1up item: a group of blocks appears floating on the upper part of the screen, you have to shoot the blue one. You have to hit it with one shot, if you don't, the blue block will turn to red.

* Moai Statues : be careful with the Moai Statues at the 6th stage (last stage). Always check if its eyes turn red, if it starts flashing it will shoot.
Director : Shunkoh Miki
Programmer : Tatsuya Uemura
Character designers : Atsushi Kawaguchi, Minoru Harada, Hiroyasu Kobayashi
Music & sound effects : ???
Game's ROM.
Game's screenshots.