Boss rocks:
Bosses can appear at any time. Defeat them to get shield power-ups and other items.
Upgrading:
Make sure your weapon power and fire rate are upgraded at a steady rate. The best defense is a good offense.
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Boss rocks:
Bosses can appear at any time. Defeat them to get shield power-ups and other items.
Upgrading:
Make sure your weapon power and fire rate are upgraded at a steady rate. The best defense is a good offense.