Defeat enemies with the vehicle, long-gun, melee, and grenade, in that order, in 20 seconds

Defeat 10 enemies with headshots in a row

Use all the zip-lines to traverse the city

Pick a three pin lock in under 15 seconds

Create a skater using the CAS system.

Perform 30 vertical stealth takedowns

Complete the game in explorer mode

Complete the game in hard mode

Complete the game in moderate mode

Beat the best score in the retro videogame

Find the Strange Relics

Make 10 enemies drop their grenades

Defeat 4 enemies with the same explosion (all explosive items and weapons apply)