Clash of Smash Time Zone Battle Room

From the surface, nothing at first. Then bubbles, first only a handful. And then some more, in burst, and a redder sea. Then nothing more. It is supposed that the fishes caught up with them before they drown, but no one could be sure of that. One certainity however, comes from the obvious result of such an unfair match between two landwalkers and swimming hellish jaws.

(Guess that's it... unless you have one last surprise on your side)