This was fun! I love the visuals and the character! And the audio was really fun too; I like how it ramped up the more hits you got.
The one thing I will say is that frenzy at the moment comes off as more of a punishment than a reward, in my opinion. Being stripped of my control doesn't feel great, and the spinning around is aimless. On the larger maps, I often end up completely missing all the enemies, meaning I'd honestly do more damage without the frenzy. To make matters worse, I can't even cancel it!
So I suggest either A. making the frenzy auto-target enemies or B. giving the player some amount of control during the mode. Also, the ability to cancel it, and maybe some invincibility frames when leaving the mode.
Overall, this is really fun, and it'd be super cool to see this in a larger setting, maybe where you could walk around as Cone Boy and talk to npc's or do quests in between battles!!