http://www.newgrounds.com/portal/view/
465797
Go see! ... Please?..... ok fine... read this then, see if I care...
Guess what? I've started a new game too! It's an up scroller (as apposed to a side scroller). Yeah it's hopefully gonna be better than my last game... so.... yeah.... you can go now.....
Sacerumbra
Top scroller might be a more parallel term than up scroller, or if you want to go geometry; base scroller.