wtf but ok

i died for no reasons!!!!!!!!!!!
you should make that they can came from left and right and just take the time to draw some beautiful art, i am sure that this zombie took you 5 second to do!!!
anyway, if you improve it, it will be very good

Completely original!

It's just so good in many ways, i wish i could count to tell you how many.

Better than the first

Well its lots better than the first, but still needs lots of improvement.
Nice work with the menu, but consider putting more detail into it, since its just one picture, it shouldnt be too hard.
YAY, music! Nice, but some other sounds would be welcome as well, such as skulls when shot, and gunshots.
New skulls! Yay, they really look better than they did in the first one! But when they die, they follow the cursor for a while and that tends to get annoying.
Also a heathbar , weapons, some kind of challenge mode ,clear levels (a pause when you can buy improvements between the levels) and a reloading system would be nice.
Different skulls and... HEY TsuQ put it nicely.
"Consider multiple levels with increasing advancement requirements and the ability to continue or implement a life system and add one-up enemies."
YEAH, thats it! Well good luck.
Anyway, I know its a test. Itll get better.

bad animation

its so boring and the art needs alot of work

Twas alright...

It's a good first try, but the artwork needs to be improved quite a bit and there was a problem clicking on the skulls going across the top of the stage. Still, you put the effort in and I think it shows; there was an aim, a timer and a custom mouse. Good luck with your future games =D