The ability to collect materials and use them.
1. Collect logs in order to place road blockers. The road blockers can stop zombies but not for long.
2. Find abonded shops, search it to find stuff like, Soda, weapons and such.
3. Collect Oil all around the town and then u must find the LEGENDERY flame thrower, the ultimate weapon.
4. Find a rubber band and a stick to combine them into a slingshot, then go to a Nerd to upgrade it for food or something.
5. Finding the lagendery car wont be enough, you must collect 6 transistors around town and 10 oil galons and a Key (Lola's keys) to start this baby on.
6. Create a transistor by collecting Car pieces and leptops.
7.Find pistols in the police station.
so on..