There are 6 different types of robots that appear based on how many points you have earned during the game. Grey Robot appears if you have earned up to 5,000 points. Receive 300 points for destroying it.
Blue Robot appears if you have earned between 5,000 and 15,000 points. Earn 500 points for destroying it. White Robot appears if you have earned more than 15,000 points. It takes 3 bullets to penetrate his shield. Earn 1,000 points for destroying it.
Black Robot appears if you have earned up to 30,000 points. This robot is capable of firing white energy bolts that absorb bullets. Receive 2,000 points for destroying it.
After 50,000 points the Black Robot will shoot yellow energy bolts and can destroy the bunker.
Invisible Robot appears if you have earned at least 80,000 points. Look for his visible bullets to figure out where he is. Earn 4,000 points for destroying it.
6. The game ends when all of your men have been killed.
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