Full list of all 12 The Adventures of Shuggy achievements worth 200 gamerscore. It takes around 8-10 hours to unlock all of the achievements on Xbox 360.
Defeated the guardian of the clocktower.
Completed all of the clocktower levels.
Completed all the CoOp levels.
Completed "In One Way..." in less than 16 seconds.
Completed "Extending Platform" without using the rope.
Completed all of the graveyard levels.
Completed "Spike Dodging" without using the teleporter.
Completed all of the gallery levels.
Completed all of the boiler room levels.
Completed all of the dungeon levels.
Completed a level containing Shmu.
Completed a time travel level.