Rat Killer (free)

Do you like rats? I didn't think so! So why not help me get rid of them?

Rat killer is a fun, action filled puzzler.
You play a rat exterminator who must use all tools in your possession to stop the rats rampaging.

* Use bombs, poison, gas, gender-switch and cheese to get rid of the rat problem.
* 12 action filled levels in 3 different themes.
* Free to play with ads, pay to remove adds.
* Global high-scores through Google Game services
* Achievements!

I have developed this game in my spare time after my 8 to 5 job.
Please give a fair review of what you enjoy or dislike about the game. I appreciate constructive criticism!
If you enjoy the game please buy the paid version.