Hint: Level warp: Ignore the bird at the end of level 1. Instead, shoot
the ceiling to reveal a warp to a point further in the game.
Hint: Extra lives: Jump on the second platform on level 1-2. Turn left
and fire until a warp appears. Enter the warp, select the warp
to the right and move right on the next screen to find an extra
life.
Enter the warp on level 1-3 and press Left to land on the
center platform. Shoot to the right until another warp appears.
Use the warp to find a location with two extra lives.
