Quite frankly, every ounce of this was generic. Generic music, some good animations that were ultimately pointless in the long run due to lack of context (this being an issue in all collabs), some seemingly easy things remaining unfixed and unpolished due to the fact that it's "just a collab clip" or "just a test", lack of originality on many fronts just running about doing the same kills over and over. There were also very little custom sprites and when something did deviate it was usually not very well made either. The overall concept of a collab like this hasn't been interesting or original for about three years. It's bland to the point of almost being a parody of itself.
Concept 0/5 (Unoriginal)
Animation 3/5 (Unpolished)
Art 1/5 (Lack of well-made custom sprites)
Sound 2/5 (OK music fit the mood but extremely generic + Same old sound effects, no complaints)
Overall impression 1/5 (Forgettable)
Final score: 2/5