|Earn a gold medal on the Campaign mode of Kill Zone and Overflow.|
There are many different ways to complete each and every level in this game to a gold medal standard. Remember to always ensure that the aliens are taking the longest possible routes so you have more time to kill them. If you make a mistake, you can hit to go to your last checkpoint; and hit it multiple times to go back further.The videos below show one way to do these levels, however if you find that you are still struggling then there are a few different methods available on YouTube.
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