Is there some point at which an XBLA game has enough girth to drop that adorable "Arcade" moniker and just be, you know, a game? Weighing in at 629 MB, Portal: Still Alive seems to be pretty close to that limit. That means that if you're not sporting a hard drive in your 360, you're pretty much out of luck. It also means that the previously announced 350 MB limit has just been kicked in the teeth.

Still Alive is almost double the last King of Bytes: EA Sports Fantasy Football Live Draft Tracker, which boasted a comparatively paltry 334 MB. We've put a line out to Microsoft to see if this is a one-time thing or a new policy -- we'll let you know what we hear.

This article was originally published on Joystiq.