Hint: Advance to Death Star:
Hint: Extra lives:
Hint: Tractor beam core:
Hint: Womprat:
Shoot the third Greedo in the Cantina. Quickly run to the wall to the right to enter a warp to the Death Star.
Find the wall in Obi Wan's cave that appears slightly different than the other walls. Jump left into the wall to find two bonus lives.
Kill both of the opponents in the tractor beam core room, but do not jump during the fight. Just point the gun upwards and shoot. Your character cannot be hit if you stay on the ground.
Stop after reaching the entrance to the Womp Rat Boss's lair. Jump up and down and shoot the Boss to avoid getting hit.