As for the complaints,
The idea of piling corpses sounded cool at first, until it started clogging up some of the narrow tunnels, making they harder to get past and potentially creating a soft lock.
The turrets also seem kinda too advanced for such a silly game like this. They actually predict the player's movement (and is actually really good at it) and also shoot really fast projectiles. Combined with the 1 HP protagonist and the lack of save points, it really creates a frustrating experience.