Accrue at least fifty shotgun shells before starting a new run. To save ammunition, early in your run you can easily avoid zombies instead of shooting them. Jump over or avoid them to progress. Although some zombies may drop extra coins and power-ups, you will not need them that early, and your ammunition is more important. After you reach the 10,000 mark, you will need all the ammunition available to clear the masses of zombies. Only purchase the biggest box of ammunition. You can get 200 ammo for 3,000 coins, saving 800 coins over the 50 ammo pack. The more you purchase, the lower the cost.
Extra Mount
The Extra Mount works similarly to having an extra life. Riding an animal will make you invincible. However, you will not be riding until you hit something and there is a timer. Save the Extra Mount as late as possible, when you are having difficulty.
Scoring
Money collected while progressing and the amount of zombies killed will influence your score. However, most of your score is based on the distance travelled. The farther you get, the higher your score. Always follow the safe route and do not risk ending the run for a power-up.
Upgrades
Purchase the Flight Duration upgrade first, followed the Magnet Duration, Bull, and then the Mount Duration. Although riding is useful, it is not done that frequently.