Quite fun and tense. Everything worked fine. The quality is amazing, I never ran into any issue.
I'm a huge fan of pixel art style!
I really liked the atmosphere, The limited visibility combined with the ambient sounds really made it tense.
The 2 things I didn't like though were
1) You only get to fight a single scaled up boss.
2) You get absolutely loaded with weapons and ammo, which made the game quite easy
Still, an enjoyable experience.