Originally created by a Japanese programmer
named Xiderowg,
then adopted and improved by a Japanese-Brazilian programmer
named MogHunter.

These set of scripts use a method in which a collection of customizable events created on one map are teleported into use on the current map for not only the player but enemies as well, this allows you to take RPG MAKER XP and trick it out into making action games such as Secret of Mana or Legend of Zelda, with the right scripting you could even make a side scrolling platformer like mega man ^^

What Xiderowg had started with this Action Battle System,
MogHunter has continued to update with improvements to the system
(written in Portugese) translated into English by Calvin624
so that those using RMXP can make powerful and amazing games.

current version XAS 3.9
(waiting for XAS4!)

CHECK OUT XAS 3.72 (just released!)

Kix any ABS's @$$!

• throwing system
  
• falling system
  
• active HUD

SERIOUSLY! HOW COOL?!!!!

XAS 3.8 (Mogunter's latest update!)
XAS 3.8 (translated by Calvin624)

Still Kix any ABS's @$$!

+ swimming system
+ flying system
+ moving platforms!? (Calvin's influence I'm certain ^,^
* throwing system
* falling system
* active HUD

awww $#!7! CHECK IT OUT!

XAS 3.9 translated by Calvin624

IMO has kicked every ABS's @$$

+ skill targeting
+ make enemies more easily
+ lag prevention for big maps
+ diagonal attacks
+ background effects
+ improved hookshot and boomerang