I don't think C3P0 is much of a swimmer, guessing by the expression on his face. I do, however delight at the idea of a parallel "Star Wars" in a Mario-style underwater level.
When I was a kid I was obsessed with those fancy chocolates that look like seashells. They are used to spectacular effect here. At first I thought those were real shells! I'm filing this one away for ideas later in the year for sure.