I can't run that demo right now, I am on linux, but will try later.
As for the game, yes, something of Battlezone sounds much to large at this point. I am definitely looking at doing something like SMB and Sonic the hedgehodge type of action/platform/cartoony games. Something like, an SMB world map, where you walk around to pick the level you want to enter, and then a cross between Sonic and mario

But, with the main character a "ring" - hence ringo

Basically, my sister and brother-n-law's company makes a lawn game:
www.prowashers.com. And, the chracter of "Ringo" is based off of an 'washer' come to life.. I was thinking something like legs made out of springs, attached to the washer, which would make him kinda bouncy.. But, he could do acrobatic flips, and movements through the air.. And, he would venture around (mainly) a giganic lawn type of setting (as, he is just a small washer). Some views of the plain washers:
http://stores.prowashers.com/default.htm (I like the yellow ones)...
Of course, there would be enemies and goals, and at the end of each level, I was thinking a big washer bucket (as part of the lawn game) where you would do some big jump, and try to land in the center..
Anyway, my idea may sound a bit silly, and I am really open to ideas. But, I would like to incorportae the washer element into it somehow.. As, I am trying to help spread the word a bit more about here lawn game, for perhaps more sells - currently, it is limited mostly to the US midwest. However, i don't want to sacrifice the playability and fun factor.. if the idea is undoable, I wouldn't want to do it.. but, i think it could be fun.