My 1st attempt at a Spaceroll unit which I first saw here:
http://www.brickshelf.com/cgi-bin/gallery.cgi?f=275063

I liked the idea, and it stuck in my head.  So I finally did one.

I wanted something "not too congested."  So I aimed for a simple prison cage with two guards.

I realize my white space monster thing looks stupid.  I'll make something better later.