The following information is courtesy of NG:DEV.TEAM:
“NEO XYX is a maniac shooting game.
NEO XYX is the first NEOGEO game ever with a true vertical scrolling screen (TATE)!
The score system is based on medal chaining and a mild rank system.
Bombs are build by collecting powerups.
Game 6 stages with varied and colorful settings
16-bit hand-drawn graphics (dot graphics)
Switchable between vertical (TATE) and horizontal controls (YOKO)
Maniac shooting game
Available for purchase on ngdevdirect.com
Note: the video was recorded one handed from an Egret 2 Candy Cabinet”