Use your shied to hit the helicopter
Climb to the top of the ice mountain and talk to the knight. Watch out- the sabertoothed helicopter is there!
there is the jungle planet were you beat the phinex there is the fire planet were you defeat the metal dragon there is the ice planet were you defeat the cougar coppter and there is a fourth planet on an asteroid were you face the boss aka Mordred
Sir Cador joins you in your spaceship and you fly to one of the other two planets you have to defeat, the ice planet and the fire planet.
When your shield is on let the snowballs bounce and hit the helicopter 3 times.
either go to fire planet or jungle or if those are finish go to X:11 Y:82 to defeat Mordred
use your full auto gun and aim at the helicopter and kee moving until the helicopter falls to the ground. I did it and completed the level.
The main antagonist on the Ice Planet is the "Tigercopter" (looks like a white Pink Panther face on a helicopter). You beat it by bouncing back (only) the round snowballs at it, to hit the yellow windows three times. After each hit, it crashes and shoots at you.
After you defeat the ice plant you go to the fire plant or jungle plant. But if you were already there you can go to the asteroid belt where there is a castle shaped like an asteroid.
no Pluto is the ice planet
To complete the island, you must beat all three planets (jungle, ice, and fire). Each has its own "boss character" that can be defeated using one of the three Mystical weapons, usually provided by a helpful Space Knight : Ice Planet - Sir Gawain gives you the Force Shield - defeat the Tiger Copter Fire Planet - Sir Peleas gives you the Ice Arrow - defeat the Dragon Jungle Planet - find the Laser Lance on the jungle floor - defeat the Mother Phoenix (see related questions for full solutions)
The three planets (Jungle, Ice, and Fire) can be played in any order. You must defeat all three, and have all three space knights with you, before you can face Mordred on the Giant Asteroid. (see related questions)
On the Ice Planet, you fight the Tigercopter. Talk to Sir Gawain and he'll give you the Force Shield. When the copter drops round snowballs, bounce them back at him, aiming for the yellow lights. Each time he's hit, he'll crash and shoot at you. Jump. After three hits, he's defeated. If your shield gets depleted, dodge the ice missiles until it recharges.