Cartographer
Create a random map and have someone save it to their system.
12/23/2012
1:59:55 AM
Ultra Rare 2.4%
G Recovery
Play an entire game using manual substitutions, in a non-simulated game.
12/21/2012
7:22:20 PM
Rare 24.9%
Royal Flush
In 'Facility', successfully kill the enemy in the toilet cubicle without any shots being fired.
12/21/2012
6:44:56 AM
Very Rare 9.9%
Bonds of Friendship
Complete all Challenge Acts featuring Sonic's friends.
12/20/2012
4:14:25 AM
Ultra Rare 2.5%
You're On Fire!
Collect both of Swampfire's Upgrade Tokens in Single Player
12/19/2012
2:05:42 PM
Very Rare 8.0%