Snipe the snipers before they kill you
Snipe everyone in the windows and move to final battle
Can you clear all blocks?
Shoot down the enemy aircraft.
Help Gilligan from Gilligan's Island get the gang off the island by jumping from obstacle to obstacle (think Frogger) across the water to the island. Land on the far island to light the fire before the cruise ship on another three hour tour passes out of view, stranding the gang forever.
Get the diamonds!