Good concept and art direction but more could have been done to fully realise said concept.
The main draw comes from tactically converting enemies (stronger enemies are more dangerous to be around but will be more powerful once converted) and the decision to go and convert someone else or keep the converted enemy on high health so enemies should NOT be in separate rooms and instead should always be able to hit you or put them in an entirely different arena where your converted enemies cannot reach them.
You had a great idea but that can't carry you all the way! Still, I was impressed and enjoyed my time with this game.