At last it ended... such an evil game =.=, the first time i fight the boss left 31000 %!%!#!^%
Tips: spam hobbit, elf and barbarian so that you can delay the boss's movement, and always ensure your arrow hit him (I realize it doing 2nd try that my arrow fly pass his neck... wtf?)
Actually, it is very easy if you read the tip by the author
TIP: Every Enemy has a weapon to defeat it, shotgun and pistol for kamikazes, rifle for bikers and cloack soldiers, rocket and laser for mech units.
With these, you know which weapon is best vs which enemy. For those that think invi is hard, use rifle, 1 hit ko
Heh, I played with an opponent, he uses the onimaru while I uses yoshiro. At first, he keeps attack and I always exchange, den he started intercept but that time I stay instead den later he hit but luckily, I change. This support that this games only require you to think like your enemy