Can anybody recommend me some hard Genesis games? For a while I was without most of my consoles but I just got them back. I recently ordered Alien Soldier because it looks freakin' amazing and hard. Anybody got some great Genesis games out there that are really hard (but in a good way) that I may not know about -- which is likely. I'd prefer platformers and would rather not have any RPG's... but I'm a very open person.
Plus, feel free to just gush about the genesis in this topic if you want cause it is pretty sweeeeeet.