No thanks.
Just having a bunch of sprites smack into eachother for no reason isn't really that cool.
It's been done millions of times, and better.
The audio quality is awful, the music is bad and too loud, and the sound effects are constantly recycled and echoed to the point where it scrapes and hurts my ears.
And why the hell would Sonic just attack Goku? And doesn't he need Chaos Emeralds to transform?
Semantics, I know, but this flash is just overall awful, so everybody is going to nitpick it.