First time load: no lag but can't upgrade the char and hats progress isn't showing in the Achievements tab (so weird as it keeps track of the score badge)... then disconnect :/ and now can't login again...
For those who are having hard times playing the game: jump everytime but don't stand on the car. Buy exp and money first, then depend on your gameplay and status, reload/life/assembling. This way i finished the game on wave 27 buying only a couple of first aid kits.
Just my 2 cents.
There's a glitch on the robot boss after the subway: you can get stuck at the botton right corner (where the bottle is) and there's no way to get out :( On the other hand, killing chickens ftw :)
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