Grahahaha!
Never played Sonic Adventure 2 (realy want to, but bcause I'm only on PC there were no Sn2 PC releases :(((((( )
Anyway,. That was so hillarious, I was cracking up during the whole movie, and after it, I still had endless giggle :))
I heard of the rail canyon and Shadow in it. Looks like you missed that part, and during the city run you forgot to put a truck chase.
Anyway, real funny movie.
PLEASE PLEASE PLEASE make Sonic Adventure 1 parody!
There are many silly moments you can make fun of!