When you come right down to it, genetic engineering is about the only shot humans are going to have at developing real super powers. Which is why BioShock and BioShock 2 are more than just stories about some nifty underwater city gone wrong. When you have people that can move objects with their minds or blast fire from their hands and then stick them in a gorgeous dystopia, that's when you've got a story.

So what better way to celebrate that world than by bringing it into our own? With that in mind, we're offering up a mess of BioShock swag: one BioShock "Don't Wait! Incinerate!" women's shirt (size medium), one BioShock 2 Butterfly Hands men's shirt (size small), two different BioShock lithographs, and one extremely cool, handmade Splicer mask. Check out the prizes in the gallery below, and read the rules to enter.

• Leave a comment telling us what plasmid power you'd want. Feel free to make up your own.
• You must be 18 years or older and a resident of the US or Canada (excluding Quebec, mostly due to our exclusion from a "statut particulier" status in Canada).
• Limit 1 entry per person per day.
• This entry period ends at 7:01PM ET on Monday, March 1.
• At that time, we'll randomly select one winner to receive one BioShock 2 men's butterfly shirt, size small (ARV $10), one BioShock 2 women's "Incinerate!" shirt, size medium (ARV $10), two BioShock lithographs (ARV $15 each), and one handmade Splicer mask (ARV $50).
• For a list of complete rules, click here.

What is Joyswag? Since we don't keep the games and merchandise we receive for review or promotional purposes, it becomes "Joyswag," which is passed along to our readers. Please note that Joyswag may be in "used" condition. For more info on our policy, click here.