I tried watching it, only got through 15 minutes or it or so.
This animated movie came out the same year as Tangled, Despicable Me, Toy Story 3 and HTTYD came out.
I can't even say "This looks like it was made in the 80s or 90s" because Pizar was still well ahead in quality 3D animation during that time.
PlayStation 1 CGI looks better than this.
Why is it so shit?
Because the maker (the scriptwriter) had a little or almost no funding to make the movie.
SEGA has already rejected it, Uwe Boll had left, and all down to the scriptwriter who loves Wonder Boy and doesn't want his script went to waste.
Without funding and SEGA's approval, this is basically like a fan movie.