A few suggestions

First of all, really fun game. Absolutely love all the different weapon types! However, there are a few things I would like to see added, as the game does lack a little depth.

1. Level & alien diversity.
All of the levels start to look the same after a while. Also, I would like to see more alien types added - perhaps a type that has tentacles that it can reach out and grab you with. Please add some diversity!

2. A help screen.
A help screen on the game menu would be nice - explaining every aspect of the gameplay and describing components in the game.

3. An alien almanac.
A page listing all of the alien types and their strengths/weaknesses would be terrific!

4. A male character.
I would like the ability to play as a male character, not just a female.

5. Key cards.
Wouldnt it be cool if some of the doors (maybe just the last one in each level) required a key card to open? The keycards could he hidden in those cardboard boxes, or maybe in a desk that requires searching. This would add just enough depth to make the game a bit more interesting, while still being easily do-able.

6. Floor pause.
Some of the harder floors take quite a long time to beat, so I would like a way to pause a floor and return to it later.

Lastly, I would like a multiplayer and survival mode added. The multiplayer mode could be survival as well - seeing how long you and another random player or a friend can last against endless waves of mutants with every increasing strength and quickness.

Thanks for such a great game and I hope to see updates soon!

jafaint about Xenowerk