Pretty good concept that could go further
Nice work dude, I enjoyed this little short. The art was pretty good as was the humor, but I think it could have had a bit more to strengthen it's entire quality.
-The noseblled gag was pretty funny, but I felt as though you could show other stereotypes either in the scene, or make a few vignettes featuring a different gag; the overdone powering up sequences of DBZ, the exaggerated expression changes, revenge quests, anything with robots and ninjas, or even crazy day to day issues in a typical anime highschool could have been contenders.
-Voice acting was pretty good, it did it's job; sell the joke.
-Presentation: Good clean and simple, no complaints there
-Art: I liked it, the animation was smooth, the characters were fairly well drawn and the lip syncing was good.
Overall, I enjoyed this man. I wish you all the best with your future works, and I do hope you revisit this concept, there's a lot you can mock or just have fun with.