BioShock for the Microsoft Xbox 360 and the PC has been under development by Irrational Games and Microsoft since late 2004 and it looks like all that hard work is going to pay off very soon. The game looked to draw some attention in E3 and it did just that with this trailer below.

As mentioned time and again, the main attraction of this game isn't just the eye-popping visuals but how it plays. The developers have touted a weapon system that lets you customize your guns for the best killing spree possible. The enemy AI has also been innovated such that you can't just go plowing through hordes hoping to get out alive like you were Rambo.

Among the more intriguing enemies that these trailers are building up are the Big Daddies and little sisters who support each other and require you to use some strategy to approach. This gameplay video demonstrates intense action with other critters you'll encounter soon. Alright, we'll shut up now and let you enjoy the vid.