US AAF Mustang © 1990 UPL.
You take control of a US fighter-fighter plane. And keep going on, by shooting dozens of enemy plane. This side scrolling game has good BGs.
Game ID : UPL-90058
Main CPU : Motorola 68000 (@ 10 Mhz)
Sound Chips : YM2203 (@ 1.5 Mhz), (2x) OKI6295 (@ 24.242 Khz)
Screen orientation : Horizontal
Video resolution : 256 x 224 pixels
Screen refresh : 60.00 Hz
Palette colors : 1024
Players : 2
Control : 8-way joystick
Buttons : 2
=> [A] Shoot, [B] Bomb
Developed by Nihon Maicom Kaihatsu(NMK).
Released in May 1990.
Also licensed to Seoul Trading.
The bootleg version use the "Raiden" (seibu) sound hardware (a Z80 @ 3.579545 Mhz), all musics from "Raiden" are present =).
* Secret message : During machine reset, press buttons1+2 on player2 side. 'Ready?' will appear. Then press button1 14 times on player1 side. The release date will appear.