I know this is a fangame/passion project that Lixian made to Markiplier, I would still like to review it apart from that.
The game feels good to control, the combat (later) feels good. I like this FPS Rogue-lite game with the horror aspect. As expected, the horror can wear off after a few runs, but I don't necessarily think it's a bad thing.
The idea of temporary perks are fun. Like any good roguelikes, these can sway your playstyle in a run, think of The Binding of Isaac or Slay the spire, where temporary randomness can and will affect your playstyle. Here, due to the lack of weapon choices and playstyles it's not as relevant, but still fun.
Enemy variety is, well, lacking, but again, because this was designed to be a small game that outgrew itself, this is acceptable, but of course this makes the enemies predictible.
Lack of room variety. This can be felt pretty fast. The rooms are high quality, well designed, but because the same room can be repeated multiple times, you will quickly feel this repetition.
Anomalies are fun. They are good! I enjoyed them even though blackout gave me a few jumps. Hell is amazing when you can survive and need to farm teeth, but feels like a deathsentence early.
Game balance is... off, but once again, can be forgiven due to the original plan. The combat lacks any need for skills, how Lunky clones attack, you can't really dodge. So the early game you will trade 40-60 HP / enemy slain, because you can't rely on your skills to dodge out of an attack's way. This is somewhat frustrating. Just to take an examples in Hades or again TBOI, you can develop skills by learning enemy patterns and even without good upgrades/items you can progress and even finish the game (if you are really good of course). Here unfortunately, you are not given the chance. This forces you to almost immediately fail your first few runs, to just upgrade your teeth multiplier so you can start grinding for upgrades. And then after you have block, the fights became really simple and repetitive, switching between a hit and blocking to just get a bit more teeth per run. And the moment you get 100% block, you can easily become unkillable, at least until the end.
Buying the gun early feels like a negative thing. You only get to know it hits weak by itself after Warfstache explains it. Getting to make it good takes a lot of bones to upgrade which is not obtainable "early" (I say early as the game is about 1.5-2 hrs long to 100%), but ammo crates start replacing medkits as potential loot, which are REALLY useful early to get a bit more teeth unlike ammo.
Loot rooms feel weird. But that's just because somehow I managed to get into one with ZERO items which feels unintended?
Backtracking is not fun. The last level requires you to get to the end for a code which you have to memorize (maybe a keycard would be better?) and then backtrack the whole level. A teleport option would be appreciated (Enter the Gungeon uses this mechanic to reduce backtracking) as walking back multiple rooms, sometimes mazes without danger or reward is boring. Especially if you get the big map anomaly.
Warfcoins feel useless? I don't know, but I didn't find the point in them, besides not being able to take the free ones you get in shops. You will just convert what you need OR miscalculate, convert more and lose them cause you can't spend it. Besides fluff, I don't find any purpose of them, but it's a good joke Warfstache doesn't accept teeth, but has a machine for conversion.
The magnet could be a permanent upgrade. It can become annoying to try and collect teeth especially since they can fall behind obstacles or into pits.
Flashlight should be perma on. The game is realllllly dark, some cutscenes even turn your flashlight off, there is no reason why it shouldn't be perma on (or at least auto on) each run.
Endgame the combat feels good, the gun feels strong, I like the ragdoll. Because of this it can be good for a bit of a "brain off" shooter. I wish it had an infinite mode, where the game got harder as you go, but you could keep your perks and eventually buy all.
And the soundtrack. Woow, it's really amazing, fitting for all the situations and places, really well done!
I had fun, I wish it was a full length game :D