Below average for the genre; bad balancing.
Graphics: 5/10 - The graphics are good up to a point. Eventually you won't see any new creatures, and a lot of the creatures look Alien-esque. Little variety after awhile. But, I can look past that. The biggest problem is that the graphics are not optimized. I have a dual core processor, 4 gigs of RAM, and a 1 gig memory card. While my computer is no where beast mode, it should be able to easily handle a flash game. When you get an automatic weapon, the game becomes unplayable. I took two points off this score due to optimization issues.
Music: 7/10 - Good music, especially the intro
Storyline: 5/10 - Nothing too unique or original. I do like the beastiary. I knocked off a point however, because the damn text is too hard to read!
Difficulty / Gameplay: 3/10 - The gameplay has been done before, and done much better. Difficulty, the games balance, is paramount to a genre like this. If the game is too hard, you won't get many people to play it. If the game becomes far too easy, the game becomes boring. This game has a problem with both.
Up until wave 10, the games difficulty curve is pretty good. Though I found it odd that I only needed to buy one weapon (the coil gun) to get to that stage. So I saved up for a turret; then the game became easy. That's fine. But then I got infinite ammo for the coil gun; then the game became far too easy.
I saved up for the 'bigger' weapons, expecting them to be even better, but they all ended up lagging my computer, dealing piss poor damage, or both. Weapon balancing is all over the place. You can get to the point where you watch one entrance, because your turret can kill everything else quickly. It also gets to the point where you die in two hits from a ranged attack that may be invisible.
The game has a problem with difficulty being too easy, but also when you do die, it feels like you've been cheated. The lack of a save feature is really bad, and I knocked off another point for that too.
Overall the gameplay (gun balance, repetitive, easy, cheap deaths, no save feature), is the games weakest point, and the game needs to be completely redone in this aspect. The house needs to be made bigger, so the turret only covers you when the barricades are gone. The more costly the gun, the better it should be. Enemies should be more varied, and waves should come quicker. Deaths should only 3 hits or more, and a result of being swarmed by aliens. Graphics need to be optimized so it doesn't lag so heavily when you use automatic weapons. Do all of this, and change the damn text so you can actually read it, and you'll have yourself a decent game.
Currently though, its just below average for its genre.
