got (probably) all of the special arena mode characters in Madness Project Nexus (classic) : r/madnesscombat

Grunt, Madness Combat Wiki

The FULL Madness Project Nexus (Arena Mode) Experience!

Madness Project Nexus: Classic Arena Mode Zombie Army

5341 best Madness Combat images on Pholder

So i just played this fan made remake of Madness Project Nexus called MPN Redux and i loved it : r/madnesscombat

Arena Mode, Madness Combat Wiki

Steam Community :: Guide :: Arena Encyclopedia

You're a shipwreck with your heart of stone..

I (think I) got every special character that's a Protagonist or Antagonist in the series : r/madnesscombat