You unlock levels one at a time. You unlock the next one after you beat the previous one.
all you have to do is unlock all the puzzle mode levels in plants vs zombies
SCORE is the code to unlock all the levels.
unlock all levels zuma revenge
You have to beat all of the levels and then you get extra levels when you beat it.
NO!
Beat the one before it...
Matrix
UNLOCK ALL THE LEVALS!!!!!!
imtolousy: Unlock all levels unlockthemaster: Unlock the secret team
you have to finish all the levels
You have to do all the tasks that all levels ask for.
Yes, they are: Unlock Everything "PumpkinEater" Unlock all Levels "KeyToTheCity" Unlock all Vehicles "AllFreeRides" Unlock all Career Events "LearnToDRIVE" Unlock All Events "ImReady" Unlock All Game Options "InsideJob" Unlock All Characters "Eeeeevil"