
Psycho Soldier © 1987 SNK.
Psycho Soldier is a side-scrolling shooter featuring two-player simultaneous play. The major character is a girl named Athena. She fires blasts of psychic energy as her main weapon. She can collect orbs which she can control telepathically. These orbs protect her from some projectiles and can also be launched at targets. The orbs will explode on impact. Her companion, a boy named Kensu, can help her with his own powers. Together they clean up a ruined city full of monsters and mutants.

Game ID : 'PS'
This game is one of a particular line of SNK machines that operates using three Z80's at 4MHz. Most of the sound effects come from a YM3526 (OPL1) FM chip while most music and all digitized effects (including the complete vocal track) are created by a Y8950 (it is a YM3526 with a 4-channel ADPCM decoder added on). Here is the detail :
Main CPU : (2x) Zilog Z80 (@ 4 Mhz)
Sound CPU : Zilog Z80 (@ 4 Mhz)
Sound Chips : Yamaha YM3526 (@ 4 Mhz), Y8950 (@ 4 Mhz)
Because of its extensive vocal soundtrack, the board is huge. It consists of three PCBs full of ICs all sandwiched together.
Screen orientation : Horizontal
Video resolution : 384 x 224 pixels
Screen refresh : 60.00 Hz
Palette Colors : 1024
Players : 2
Control : 8-way joystick
Buttons : 2
Released in March 1987.
Psycho Soldier was the first-ever video game featuring a vocal soundtrack. The Japanese lyrics for the Psycho Soldier theme is also used as the Psycho Soldier team's team music in KOF94 and 96, as well as Athena's theme music in KOF 97 and 02.
Psycho Soldier's Soundtrack was released as a bonus with the purchase of Nintendo Famicom's Athena. It also included a vocal version of the ending theme.
The main character, Athena, appears in The King of Fighters series. Kensu, wearing a different outfit, appears in The King of Fighters series as 'Sie Kensou'. Kensu, as he appears here in Psycho Soldier, appears as a striker character in The King of Fighters 2000 as ''Psycho Soldier Kensou''.
| Lightning flashing column | Shooting power increases |
| Blue ball(s) flashing column | provides psycho ball(s) for psycho shooting and defense shield |
| Red beam flashing column | Increases psycho energy |
| Skull flashing column | AVOID. drains your psycho energy (doesn't kill you) Flashing rainbow square - Better jumping response and dexterity |
| Red Sword | break stone with one hit, allows fire through stone and walls |
| Large blue ball | Turns all enemies in psycho balls and their projectiles into balloons |
| Orange ball with blue center | Increases fire speed |
| Infinity sign | Ability increase : ??? |
| Arrow up | AVOID. Upgrades enemies into more advanced enemies |
| Arrow down | downgrades enemies |
| Large red skull | AVOID. Takes away all extra powers and leaves you with basic powers |
| Large red ball with "F" | Instant maximum psycho energy |
| Pillar formations | shoot these and a floating balloon or saucer comes out. Grab for bonus points. The longer you wait before grabbing, the higher the point value (up to 8000 points). |