Well-polished, but not funny.
This Flash is as about as well made as it can get. the graphics are great, the sound is great, and the timing is great. But the actual meat of this Flash, the writing, just isn't entertaining.
The problem is you can't effectively make the idea of a tricky shark funny with two gags with extended setups when the piece is entitled Trick Shark. Instead of having the scenarios end the way they did, there had to be another twist to catch the audience off guard. As it stands now, this reminds me of Jabberjaw.