Gorgeous graphics, if you didn't notice...
On the whole, the graphics on Flash tend to look pretty flat or static. Not here - not only do they look lush and well defined, but there are certain aspects - especially the water effects - that are so far above the usual standard the benchmark has been raised.
Not only that, but there's a simple story well told, with lashings of humour, that means the movie is more than a few pretty pictures. The music also adds to the slickness of the package, creating a fantastic little world that deserves to be discovered and explored time and again.