Heavily downrated, but a 5 anyways.

Here I just copied paste the game's information but it's all ready said!

Improvements have made:
- WASD and horizontal mouselook control
- Better enemy ai that makes a sound when it first sees you and then avoids all obstacles to get to you
- Enemies have health
- 2 more types of enemies that will shoot at you, the "soldier" moves slowly towards you while slowly shooting and the "commando" stays in place and fires a stream of bullets
- 9 more guns, press the 1 to 0 keys to cycle through them (only works if you've picked them up)
- Doors that close themselves and can be opened again, and also make sounds
- Vertical-facing doors as well as horizontal doors
- Treasure and medkits + points for kills
- MOAR PLANTS
- Working exit
- Every object has its own small drawn icon to represent it, so that the slight confusion of coloured squares is gone
- Explosions damage nearby enemies
- The ceiling and floor are drawn with objects. What you do, is put 1 ceiling object and 1 floor object anywhere on the map. You don't need to place down every floor tile/ceiling for the room. The game chooses which floor/ceiling to draw by which floor/ceiling objects you have in the level.


I hope this hopefully help it's popularity and rates, mostly everyone else who rated didn't even checked it out.