I like the animation, art, and music, but I felt the premise wasn't executed as well as it could have been. I thought it would have been better if after the drowning timer music started, Sonic tried longer (unsuccessfully) to grab an air bubble, and then sucked the air out of Tails' lungs out of desperation, rather than a premeditated sneaky scheme thing. And then I think it would also have been funnier if it showed Sonic being relieved and walking off nonchalantly. as Tails' body floated upwards.