Can we gat a hot key or something that keeps the waves coming without manually clicking them to do so? I am sitting here waiting for each wave even though there is no way I can lose. If I do shame on me.
Don't use pierce, us bounce. Alon with quadruple bullets and rage I don't even need to reload with the machine gun. Just pull the trigger once and watch them bounce around a kill multiple aliens. Also, since it bounces off the screen the bullet never leaves it. Bonus.
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