i played AH the first day it came out on newgrounds. i remember in the months leading up to it, tom and synj kept just saying "we've got a project we're working on" and on the forums we would beg for more details!
I enjoy an oldschool 2D sidescroller as much as the next man (the next man being, technically, Friggy, who's sitting beside me eating a jam-and-sardine butty). But could someone provide a little info?