Have attained Combat Level 15

Collected half of the Sun Medals

Have mastered the Lightspeed Dash technique

Restored the fourth continent

Completed all missions for a townsperson

Have attained Combat Level 10

You completed GTA IV to 100%.

You collected every hidden package in the game.

You've met all the random characters.

You won a multiplayer race without damaging your vehicle too much.

Have mastered the Wall Jump technique

Have mastered the Stomp technique

Restored the first continent