1. The game doesn't feel immersive 2. The lack of weapon variation 3. Shotgun is overpowered, got to wave 14 easily after buying the shotgun 4. Damage upgrade is broken since all I had to was shot the head and they die in 1-2 hits 5. Enemies were boaring and were slow providing less horror factor 6. Melee is too strong 7. reload is all the senor buttons, not just the left...