Finish the Game on Normal Without Changing the Difficulty

Find 20 Treasures

Kill 5 Enemies in a Row with Headshots

Collect 5 Cars

Perform a 180 powerslide with Dominus or Takumi

Completed Episode 5: "No Going Back"

Reached the terminus.

Reached the other side.

Took a breather.

Completed Episode 4: "Amid the Ruins"

Survived the attack.

Found the Observation Deck.