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You start Stage 3 jumping into a sewer.

On this level, the floor is broken and requires you to jump over holes in the floor to avoid falling into the poisonous sewage.

[edit] Boss

The boss is a ninja wearing green clothing.

While he fights by using only kicks and punches, his special ability is to create four mirror images to attack.

If you have a weapon, the images are killed quickly.

Within the fight, he will create mirrors of himself four times, the last image performed when he has one health bar left.