XII Stag

XII Stag (pronounced Twelve Stag), is a shoot 'em up arcade game developed by Triangle Service and published by Taito. Originally released for the Taito G-NET arcade board, and later ported to the PlayStation 2, Xbox 360, and PC.

Digital Bros published the port in Europe; however, the game was not released in the USA.

Attacks

 * Normal shot: Press A. There are 5 shot levels.
 * Barrier: Press B. Consumes 1 bomb.
 * Side attack LEVEL1: Tap horizontal direction once, then opposite direction.
 * Side attack LEVEL2: right, left, left or left, right, right
 * Back fire attack: When enemy is close to the rear of player's fighter, enemy is automatically damaged.

Multiplier system
When enemy is destroyed by Side attack or Back fire attack, the current score multiplier increases by 1, up to 12. The multiplier decreases by 1 at a time when enemy is not destroyed by either attack for a prolonged time period.

XIIstag Limited
It is a 1-stage demo of the game that includes Stage 4 of the original game. Full-screen and windowed executables are included. Unlike the original, the objects are 3d objects rendered in software.

XIIZEAL
XIIZEAL is a port of XII Stag released in 2007 for the Windows Mobile platform. It includes 5 difficulty settings from very easy to very hard, as well as the original soundtrack. This version was later released for Steam in 2015.

Shooting Love. 10 shuunen ~XIIZEAL & ΔZEAL~
The Xbox 360 version is a compilation version that includes XIIZeal and ΔZEAL.

DeltaZeal was originally as G-Stream G2020 by Oriental Soft, which was developed by future Triangle Service programmer and founder Toshiaki Fujino.