Disappointing.
At first I wondered why you would bother to slam the 'popular flash characters' yet skipped over most of the REAL losers on this site. Let's just go with 'putting in well-known characters everybody likes MIGHT make others enjoy our movie.'
Seriously. Throwing in a bunch of popular characters and mixing them with excessive violence is what terrible NG authors do best. Rather than coming up with a CLEVER insult or anything entertaining, you've resorted to lots and lots of poorly animated death and borrowed characters to throw onto the garbage pile known as NG Collabs. The only part I liked in this entire movie was the part where the epic kiss sequence got fast-forwarded and the two characters bumped their heads together. THAT was good. Throwing in a bunch of Barneys tweening around awkwardly for YET ANOTHER MATRIX PARODY was not.
All that you really did was indulge in the most prominent and irritating cliche on this site, and that defeats the purpose of making this movie in the first place.