Sonic Unleashed

You need to collect 100/200 Moon Medals from around the game to obtain this.

Pressing the start button will tell you how many you have collected out of the amount of medals in the level. They can be found in the villages/towns, the entrance stages and the levels and on some side missions. Also, be sure to recheck area's other than the levels as both Sonic and Werehog as they both have separate sets of medals.

As of yet I haven't found any decent guides as to where they all are but if anyone finds one let me know so I can put it on here.

However I can give you some tips on where to look in general.

- As soon as the level starts, check behind you and check behind the exit of the level too.

- Go through the speed stages as slow as you can as Sonic and they are pretty hard to miss.

- Look for things that you can grab onto as Werehog to reach other places - this may include stacking boxes up to get higher.

- Look in the gaps of walls or floors, break open doors or destroy scenery to also find hidden ones.

Here is a fantastic set of videos
http://www.youtube.com/playlist?list=PLB2182DD264D3E107

They cover all the day and night videos.

All credit goes to the creator of the videos ShadnicK826

Hope this helps any one after these medals.