Love the graphics, but it does have some bugs that need to be ironed out.

Could make a good mobile game, but mobile players may find it too hard, so I think it should be made easier, at least to start and get going, then crank up the difficulty.

Very difficult and definitely not finished.

Neat. Not finished, too hard and sometimes you can't click the type of animal you want to cuz they are on top of each other. But If you re-design it and make more room, less aliens and add more health. It may be worth 3 stars. Also your exclamation sounds aren't working properly (Game ove', leve' etc.).