Pause the game and choose "Extras". Then enter one of the following codes for the desired effect.

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