Overview:
Breakdown: Offline trophies: 12 (7 4
1
)
Online trophies: 0
Difficulty: 3/10
Time to 100%: ~5 Hours. Less if you follow the walkthrough.
Playthroughs needed: 1 (with some creative saving)
Missable Trophies: Everything except "Challenge of the Sphunx," "Looters of the Lost Toybox," "Mystery on the Disorient Express," and "Horror Show" are missable.
Glitched Trophies: There are no specific trophies that are glitched as of yet, but a few glitches with game itself have been found which you can read about in this thread.
Road Map:
Step 1:
Play through the game using the walkthrough I've written here. If you reference this and the trophy guide you'll have everything except Secret Handshake after you finish the game. Make a separate save when instructed.
Step 2:
Reload the save from above to get Secret Handshake, which should be your final trophy.
[PS3T Would Like to Thank Lonesheep for this Road Map]