Hidden areas in Stage 1:
Near the beginning of Stage 1, you will see a submarine floating in a pool
of water. Hold Down to walk into this area, and jump into the sub to go to
an underwater part of the stage. The next hidden area is at the part where
the boat is located. Instead of getting on it, jump onto the ledge above it
to find a secret hatch. Go inside to enter a cave-like part of the stage.
Note: Every time you complete a secret area, you will go directly to the
Crab Boss. Additionally, you cannot enter both hidden areas during the same
Getting Thunder Cloud in Stage 2:
In Stage 2, you can get the Thunder Cloud. Around the middle of the stage,
you will see a lower area where two prisoners are next to a man in a business
suit. Hold Down/Forward to crawl down to this area and save them.
Note: Enemies cannot reach you in this area. When you rescue the man in the
suit, he will pull out a cell phone and call over two bodyguards with
suitcases which contain a gold coin and the Thunder Cloud. To use it, just
shoot your gun when the cloud hovers over an enemy.
Hidden area in Stage 2:
Around the end of the middle part of Stage 2, you will see a sign above a
frozen-shut cave that reads "ICEMAN". Walk to the left to go over to it,
and shoot the ice wall blocking the entrance. Inside are numerous "ice men",
and at the end of the cave is a buried Elephant Slug, frozen in the ground
which you can free and ride.
Curing zombie or mummy status:
To turn back from a zombie to a human, use the Med-Kit item found in enemies
or boxes. To turn back from a mummy to a human, find the bottle of Holy Water
found in enemies or boxes.
Throughout the game you will find a wooden crate containing a monkey wielding
a gun who will help you fight enemies. Note: Do not rely on the monkey helping
all the time. Sometimes he will stop to pick his nose and do other things.