Spelunky Cheats - Xbox 360

Achievements
Complete each achievement to get the allotted gamerscore:

Addicted (10) - Played Adventure Mode 1,000 times.
Big Money (20) - Obtained 500,000 gold.
Ironman (30) - Completed the game without using shortcuts.
Jungle Jammed (20) - Reached the Ice Caves.
Low Scorer (10) - Completed the game without collecting any treasure. No shortcuts.
Made It (40) - Completed the game.
Casanova (10) - Rescued 10 or more damsels in one game.
City of Gold (40) - Reached the City of Gold.
Eternal Life (20) - Obtained the Ankh.
Good Teamwork (10) - Completed the game with at least two players alive. No shortcuts.
Her Favorite (10) - Won the kapala from Kali.
Ice Creamed (20) - Reached the Temple.
Seen a Lot (10) - Completed 50% of the journal.
Seen It All (20) - Completed 100% of the journal.
So It Begins (30) - Beat the Tutorial.
Mines Shafted (20) - Reached the Jungle.
Public Enemy (10) - Killed 12 or more shopkeepers in one game.
Speedlunky (10) - Completed the game in under 8 minutes. No shortcuts.
The Entire Gang (10) - Rescued all 8 hidden characters.
To Hell and Back (50) - Completed the game the hard way.

Unlock Characters
Meat Boy - The Worm, at the bottom in a goo sac.
Black Van Helsing - Haunted Castle, at the top of the castle in a coffin.
Blue Bear Suit Man - Coffin (Mines/Jungle/Ice Cave/Temple).
Green Mariachi Man - Coffin (Mines/Jungle/Ice Cave/Temple).
Leopard Suit Man - Beat the game (shortcuts allowed).
Purple Pirate Girl - Coffin (Mines/Jungle/Ice Cave/Temple).
Yellow Miner Girl - Coffin (Mines/Jungle/Ice Cave/Temple).
Yang - Beat Hell.

Unlock Avatar Awards
Fedora - Beat the first level of the game.
Pith Helmet - Unlock the first shortcut.
Spelunky T-Shirt - Play a game of deathmatch to at least 10 wins.

Glitch: Free Items without Angering Shopkeepers
When playing with a friend (or just using another controller) keep playing until you come to a shopkeeper. Have the second player (person without the flag) pick it up. Then using the main character (person with the flag) proceed to finish the level while the other player sits in the shop holding the desired item. You do have to beat the level before the person's time runs out or he will die and you won't get the item. Also if you pick up any item that you can hold onto (jetpack, cape, mattock) it'll duplicate and both you and the other player can have that item. All other items will go to the player that held them in the shop. Simply kill them off and take them for yourself if you so choose.