I have the requirements and instructions for beating Mad Jack below.
Bananas needed to enter
boss: 200
Kong to use
for the boss: Tiny Kong
Special abilities
needed for the boss: Pony Tail Twirl
To beat Mad Jack, spin from platform to
platform to evade him. When he stops moving, two switches will appear.
One on a blue square, the other on a white square. Dodge the fireballs
that he throws at you. Stomp the switch on the square that matches the
color of the square that Mad Jack is on. After repeating this twice to
hit him three times, he'll get really mad. He will begin to shoot lasers
instead of fireballs. Lasers hit an entire block, and cause it to be surrounded
by shockwaves. If you're on the square at the time, you'll lose a piece
of melon and you'll fall off the edge. To dodge the laser, wait until it
starts coming towards you, and then pony-tail twirl to the next
square. Again, stomp the switch on the square that matches the one Mad
Jack is on.
Now Mad Jack will get furious. He will
turn himself invisble! However, you can see the stars that trail his box,
so you can dodge him based on where you see the stars. When Mad Jack stops
moving (it will be hard to tell, but if you happen to see a switch around
you, then you know he's stopped moving), he'll shoot lasers. You can tell
which square he's on by seeing where the lasers that he shoots are coming
from. Again, pony-tail twirl to the next square only when the laser begins
coming towards you. Stomp the switch on the square that matches
the color that Mad Jack is on.
Mad Jack will become visible again, and
fall off of his square. You've defeated him!
Result of returning
this boss key: Nothing, believe it or not! It will
free
K-Lumsy from his cage in the end.