Epidemic

Hints:
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Strafe a lot when you're against shooting robots. When your 
laser power is low, switch to the machine gun until your laser
recharges. Save your missiles for the bosses. Find Custom 
Circuits and Highpolymer Liquid to upgrade your Protect Armor.

Use Roller Dash to speed up and to break away from tight 
situation. Don't shoot Napalm Launchers close or you might
risk taking damages. 

Save immediately after completing a mission.