Complete the following tasks to unlock them.

Achievement	How to unlock
All levels (4,500 XP)	Complete each level.
All Star (10,000 XP)	Get 3 pots of gold on every level.
Collector (1,500 XP)	Collect 100 items.
Facebook (3,000 XP)	Like Lep's on Facebook.
Fort Knox (2,500 XP)	Collect 5000 coins.
Killer (1,500 XP)	Defeat 250 opponents.
Lep's World - Fan (1,000 XP)	Lep's World - Fan.
Lep's World Addict (3,500 XP)	Lep's World Addict.
Lump Sum (500 XP)	Collect 500 coins.
Money Bags (1,000 XP)	Collect 1000 coins.
Speedy (1,000 XP)	Complete a level in less than 40 seconds.
Terminator (3,500 XP)	Defeat 1000 opponents.
Twitter (2,000 XP)	Follow Lep's on Twitter.
Who Made it? (4,000 XP)	Find out who made the game.
World I (500 XP)	Complete World I.
World II (1,000 XP)	Complete World II.
World III (1,500 XP)	Complete World III.
World IV (2,000 XP)	Complete World IV.
World V (2,500 XP)	Complete World V.