Clash of the Titans is one of my favorites, so I'll definitely +1 the... Clashic version. ("Classic" seems to be being used for all of them now, so I'm not sure how people are voting, to be honest.) Especially because we're calling them Titans and all. Although I'm not sure I see it as terribly amphibious -- it was clearly in Poseidon's domain, and in the movie, Zeus only used it against coastal cities.

But I agree with... well, not exactly with what Ampoliros said, but with the point that a Titan limited to the deep sea isn't very scary at this stage. It needs to be able to attack at least cities next to water. I don't like the idea of just tabling it entirely; it would be a shame to have Titans without a solid reference to Clash of the Titans.