Get Ruffle, an open source Flash emulator. Download the .swf (right click the game) to preserve it while you still can. But just having the extension on your browser also lets you play games.
I like the game so far :D
I'm almost lvl 30, 25 zombies left to kill and get my reward, saved up around 18k gold so far and only got 2x M9's to shoot with :)
After i'm done with the zombie quest, i'm getting a massive awesome gun and shoot my way through the game, saving up lots of gold and then buy the best gun i can find! ^^
I was hoping that I would like this game, but I don't like it that much..
People are able to block portals to a next area and people are also able to join you in battle. Even when it's unwanted.
In my opinion, I would've liked it more if it was possible to team up and then go into battle together.. Cause it's really pissing me off