Since Tales is eventually (hopefully) due out on Xbox and PS3 at some point, let's make up a list of Achievements/Trophies for the game, remember that the Xbox Live limit is 12 for Downloaded games, so here's my take:
Bronze/5G - He's Human?
Complete the Prologue
Silver/20G - Launched the Narwhal
Complete Chapter 1
Silver/20G - Stop the Siege
Complete Chapter 2
Silver/20G - It's so small
Complete Chapter 3
Silver/20G - UNHOLY THIS!
Complete Chapter 4
Gold/25G - Guybrush Kicks Butt X5
Complete Chapter 5
Bronze/10G - A Glimpse of What's to Come?
Show the flyer to the Voodoo Lady
Bronze/10G - Let me get my camera
Get LeChuck to pose
Bronze/15G - Meet Murray
Use Murray with everyone.
Bronze/15G - Eye've seen it all
Use the Glass Eye with everyone in Flotsam Town
Bronze/10G - BANANG!
Do the Banang Dance!
Bronze/30G - Always carry a shovel (In Your Pants)
Complete all 10 Treasure Hunts
Yeah some of those are filler but you get the jist. :)