The Shift concept is well cleverly done...if only there were more than 5 levels. Also, Portal humor needs to stop soon, please. Developers, resist the temptation.
We shouldn't want to play a buggy, lowres Flash version of a AAA game. The work is appreciated, because there was much done, but stop stepping on other people's toes. Put your talent towards some original content, not pipe dreams.
God that was dull. It's pretty, sure, and shooting wave after wave of zombie has its appeal, but it goes about it in all the usual ways. Find guns, find survivors, instantly get back all health every day. And once you've got the Big Gun, it's not even worth playing, unless you want to have fun shooting zombies.
A polished game, now let's see if they can make one that's interesting.
It's fast and colorful. The uniqueness of each enemy is refreshing, it's a nice variant to "requires more hits to kill". The squares that grow very big are probably my favorite. Good work.
 "SHIFT"){kind=icon}
 "Super Smash Flash"){kind=icon}
 "The Last Stand"){kind=icon}
 "Luminara"){kind=icon}