It was a good movie. Very nostalgic for many scooby doo lovers. The animation was awesome, having a very good style, smooth movements and great character desgin. Aswell as having easter eggs threw out the whole film. The voice acting was okay, the voice for scooby was great, I'm very glad his voice has stayed the same threw out all films, but the others were pretty bad. I feel like they could've picked better voices for Daphne, Fred, Shaggy, Velma, captin cave man, ect. Also dynomutt didn't have his iconic lisp.
The movie felt to fast past and the jokes threw out the whole thing was very bad. Honestly it seemed like they put more effort in trying to write good jokes than having a better story.
Also muttly should've had more screen time.
Overall though it was okay. I probably only liked it because scooby doo was my childhood.