Repeatedly tap Square as CJ is falling to take less damage when he hits the ground. Additionally, max out your health bar and get full armor. Go to a high building, such as the one in the Downtown area of Los Santos. Get on the roof and jump off without a parachute in your inventory. When you hit the ground, you will lose most of your life, but still have a small amount remaining. Note: If you have a parachute in your inventory, you will die when you hit the ground.
Take a Shamal or Hydra into the second meter of altitude. With a parachute, jump out of the plane and press Circle to open it. Then, immediately press Triangle. You will fall to the ground, and if you have full health you will survive with just a little remaining.
If you accidentally fall off a very high building, enable the "Spawn parachute" code. Press Circle to open the parachute and you will drift safely down to the ground.
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