Some of those are pretty neat. My favourite is probably the Shadow of the Colossus.
I used to love those curvy pieces that the tree branches were made form. Such good vaulting.
I would buy Lego Mortal Kombat.
Well, color me impressed. These must have taken a lot of time and Legos to make. My favorites are a tie between Excitebike, Duck Hunt and Mortal Kombat.
Going through them, the guy at the bottom of the Contra one caught my eye. I just found something about how his lower body was removed to give the illusion that he was immersed in water.
Something about it I found so delightfully, simplistically appealing.
Other than that, the Shadow of the Colossus lego build was pretty cool looking.