Movies that aren't serious can be really fun, this one however is an exception from that statement. I know it's supposed to be silly, to be wacky and hilarious but it just doesn't do it for me. The green/blue screen effects are extremely bad and throughout the movie I never felt that the animated characters were "real". The puns in this movie was over-used as well along with the bad script and I think that's what destroyed it the most for me. Now don't get me wrong: an unserious storyline can still make the watcher believe it by using the right tools. But a script that bad made the storyline completely unbelievable and breaking the fourth wall is something you should not over-use even if you want the comedic effect to become stronger. Why is that? Because breaking the fourth wall is a great way to make the audience get shocked since the actors are breaking a rule there, which catches their attention immediately. If you over-use this, however, the effect gets worn off to the point where it just gets annoying.
In some shots there's some filming-errors as well such as too much headroom, unnecessary space where it's not needed since it doesn't provide any information, lack of contrast balance between the green/blue screen shots and the objects/people and etc. Perhaps something you don't think about too much, but can be extremely annoying if it constantly occurs. This is also the reason why it looks like a really really bad B- movie from the 80's personally. The acting overall was pretty okay, even though there were in some places in the movie where it was noticeable that the actors didn't really did their roles seriously which made it harder to believe the story.
All in all, a bad movie.
In some shots there's some filming-errors as well such as too much headroom, unnecessary space where it's not needed since it doesn't provide any information, lack of contrast balance between the green/blue screen shots and the objects/people and etc. Perhaps something you don't think about too much, but can be extremely annoying if it constantly occurs. This is also the reason why it looks like a really really bad B- movie from the 80's personally. The acting overall was pretty okay, even though there were in some places in the movie where it was noticeable that the actors didn't really did their roles seriously which made it harder to believe the story.
All in all, a bad movie.