Beat it before wave ten, and before the shopkeeper came, too. ^^
With the beginner's gun, no less. And early kill bonuses for every one.
Ara.... I challenge anyone to beat me ^^
While I really enjoyed your game and it is easily possible that it isn't showing on my wifi; after I finished with four survivors all equipped with guns, got to the highway sign right outside union city, and pretty much beat the game- still got haven't a single medal XD. Can easily replay if neccessary considering I never really used the chainsaw to finish, but when it tells me "101 zombies killed – This carries over across all games and attempts. You need 101 more. " I get a little irritated. Glitch? Or just minor nuisance? Either way, some response would be appreciated.
-HAI! tester
Oh, and since I commented, Ill leave a hint for faster achievement collecting so you get by the beginning quick. Get something light like "Smash" or whatnot when you first level up. Unlike supression and quickstrike, you can equip it multiple times and use it like a regular attack by the first part of the game until you equip some more abilities. Makes things go a hell of a lot faster, ya? ;)