The "invincible aircraft" setting is available in the controls. When this is on, pressing
control-tab will add 500 feet to your altitude. While in flight (or after you die), you
can hit + s to go into slow mode. You start out in the exact geographic center of the
island. No hit + x to turn on your joystick. Now, you can move (point) with your stick.
Here are the keys:
8 - hit repeatedly to go forward
2 - hit repeatedly to go backwards
4 - hit repeatedly to go left
6 - hit repeatedly to go right
7 - hit repeatedly to go up
1 - hit repeatedly to go down
The trigger fires the cannon (toned-down for some reason) and fires heavily toned-down
mavericks. Now you can visit the baseball field in Havana, the hole in the wall, or
complete the mission after you die.