Feral Fury (UP)

Feral Fighters is an arcade game reminiscent of old shool arcade space shooters like Galaga. The arcade machine randomly spawns in shops, walking to it will let you play a round for one coin, you can usually play a few rounds per machine, but it will eventually break.

To get the achievement you'll need to beat the game (Two stages and a boss) and score over nine thousand points. After the first few waves of enemies you'll see a glowing green dot drop from enemies, this will give you a temporary attack speed boost. Usually another should drop around when the previous one expires, you pretty much just need to make sure you have the power up as constantly as possible and you should be able to easily clear the score requirement by the time you finish the boss.