User blog comment:Mckrongs/Monster Hunter 4 for the Nintendo 3DS/@comment-26953474-20121219122317/@comment-83.165.23.90-20121219145153

Hammer looked faster than in other MH's.

About the D. Virus, looks like a bar under your nick gets filled slowly and when it's full, you get that abnormal state where your back expells that purple gas... Also, I think I saw the HH emitting purple-darkish waves. I have never used a HH, but I think that this can be relative to the virus.