The Lost Castle In Darkmist © 1987 Taito.
A vertically scrolling fighting game where the player controls a knight who battles against a variety of magical characters. Collect potions, power-ups and bonus items from the treasure chests left by slain enemies. Defeat the boss enemies to proceed to the next level.
Main CPU : Zilog Z80 (x2)
Sound Chips : Yamaha YM2151
Players : 2
Control : 8-way Joystick
Buttons : 2
Even if the title screen says 1986, The Lost Castle In Darkmist was released in January 1987 in Japan.
A music for Darkmist is available on "Legend of Game Music 2 - Platinum Box" (SCDC-00473 - 00482 1.18.2006). This box has 8 CDs + 2 DVDs and Darkmist is on the Taito one (SCDC-00475).
Game's ROM.