I don't play Airsoft, I just have friends that do (I got to shoot an Airsoft gun once! ) This gave me an idea. Since most Airsoft guns require small batteries to fit inside, a flat-ish 9'' battery would be ideal! I scoured Batteryspace.com for Airsoft Batteries.
This is what I found http://www.batteryspace.com/airsoftgunb ... dguns.aspx

Tell me, would this work? I have polarized connectors that look as if they would fit in.
C'mon, the PyCast won't finish itself!

sure it will work, but why get a 12v? the dreamcast can run fine off of 7.2v.