This game has hidden coins that appear when you
jump in certain spots.
The demo screen shows a couple of these. Some of
them will give you 60 gold or more every time.
On the screen after you kill the vampire and get
the broad sword, there are some platforms that
contain a shoe shop and a cure shop. There are
stairs leading down to the cure shop, and there's
a little mushroom-type guy. Wait for him to go down
the stairs, and then stand so that you're almost off
the topmost stair. He'll come back up and hit you,
making you fall off the stairs. Hold the joystick
to the left so that when you land you walk into the
bottom step. This will drop a 60+ coin.
On the stage just after you kill the red knight,
you'll see some little jellyfish-type things on
platforms over the water. At the first jellyfish you
come to, wait for him to drop into the water, and then
stand at the very edge of the platform (halfway off)
and let him hit you. You'll take a small amount of
damage, but you'll get a large amount of cash.
Jump for coins all over the place - you never know
what you'll find!