Completed Campaign mode on Normal

Completed all hunting secondary missions

Rode every animal in the world

Find all 100 treasures

Find 90 treasures

Defeat ten enemies in a row with a single punch, after softening them up with gunfire

Find 70 treasures

Defeat 30 enemies with the RPG - 7

Defeat 30 enemies with the Wes - 44

Won a stage battle by yourself against the AI without attacking

Finish the game in Hard Mode

Look at Rob dancing.

Upload some music to your system, play that music while playing with detuned, and maximize one of the distortive sound effects.