Select Extras from the pause menu and then Enter code.

Password	Effect
AUC8EH	Carrot Wands
H27KGC	Character Studs
HA79V8	Character Token Detector
2FLY6B	Collect Ghost Studs
J9U6Z9	Extra Hearts
ZEX7MV	Fall Rescue
Z9BFAD	Fast Dig
84QNQN	Gold Brick Detctor
TTMC6D	Hogwarts Crest Detector
QQWC6B	Invinvibility
7AD7HE	Red Brick Detector
H8X69Y	Score x10
74YKR7	Score x2
XK9ANE	Score x6
HUFV2H	Score x8
BMEU6X	Super Strength