Go through portals 75 times

Finish 15 Arcade games

Get 3 stars on every level in World 1

Complete a level by doing all the recipes in order

In Campaign, kill an enemy through a wall or obstruction.

Finish the Game on Easy Without Changing the Difficulty

Kill 100 Enemies with Headshots

Kill 30 Enemies with the M9

Find 40 Treasures

Kill 20 Enemies with Gunfire While Hanging

Kill 30 Enemies with the Mk-NDI

Kill 30 Enemies with the Arm Micro