Slick!! You performed a perfectly timed pit stop

Build Terry and Clay's toughness to 100%. (The Lost and Damned)

Help Billy get his bike back. (The Lost and Damned)

Sing your first song

You completed all 9 assassin missions.

You completed the mission "Museum Piece".

You unlocked the special ability of Brucie's helicopter ride.

You completed the mission "Roman's Sorrow".

You unlocked the special ability of Roman's taxi.

You beat a friend at pool.