okay for everyone saying the towers are over priced just doesnt know how to play. all you need to do is put a mushroom in a good place and have a good strategy. i beat the game. its realy fun just took a long time
okay this is what i did for the hell dining badge i bought 3 quake boxes upgraded them all the way then i bought the laser thing upgraded that thing all the way its as easy as that. and for the zombie one just use your shotgun for big groups and for the ones that are straying away from the groups use the pistol