If we are only relating the creativity/uniqueness then I think Splatoon compares to the Portal series mainly because of the novelty of the interesting mechanics.Since most of this site is coming from Smashboards, let me just be the first to say that this isn't another smash bros game, and therefore shouldn't be treated as such. There is a huge difference between a mainly 1v1 competitive game and 4v4 team gaming. So I plead that we don't constantly relate to it. I understand that this site is linked to smashboards but I just feel like this needed to be pointed out.
Besides that, what game do you guys think The creative/unique Splatoon would be most easily relatable to?