Below is a list of how to reach 100% completion, and what everything in the game is worth (by percentage).
Ninety Story/Procedural Missions - 68%
Acquire each friend's special ability and do their activities - 10%
Win at each activity and mini-game - 5%
Find all random characters and complete their missions - 5%
Kill all thirty wanted persons - 2.5%
Complete all twenty vigilante crimes - 2.5%
Complete all fifty stunt jumps - 2.5%
Eliminate all two-hundred pigeons - 2.5%
Complete all thirty car thefts - 2%
Subject: 100% Completion 
Mon Aug 01, 2011 2:29 pm
