After the game starts, the mechanical monster will attack came a steady stream,
Must arrive at the monster attack range, click around six guns,
Then click on the monster locked attack.
After the knockdown monster get the medal and score,
Guns can fire through the interface upgrade skills,
Upgrades are attack, attack speed and complementary skills,
Guns complementary skills different, there repel monsters, range attacks and retarder monsters and other functions,
Competition among the highest score through mutual friends can Goole + ranking.
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