Cheat Mode
After you have unlocked the Leaky Cauldron hub area enter Wiseacres Wizarding Supplies in Diagon Alley. Go upstairs and talk to the vendor to be able to enter the following passwords and activate the corresponding effect.
Where and how to enter cheats
[video]http://www.supercheats.com/video/LEGO+Harry+Potter%3A+Years+1-4/5347/videos.htm[/video]
How to activate cheats
[video]http://www.supercheats.com/video/LEGO+Harry+Potter%3A+Years+1-4/5348/videos.htm[/video]
Red Brick Cheats
AUC8EH Carrot Wands
H27KGC Character Studs
BMEU6X Singing Mandrake
4DMK2R Disguise
F88VUW Ice Rink
QQWC6B Invincibility
HZBVX7 Silhouttes
ZEX7MV Fall Rescue
67FKWZ Stud Magnet
89ML2W Regenerate Hearts
J9U6Z9 Extra Hearts
T7PVVN Christmas
FA3GQA Fast Magic
Z9BFAD Fast Dig
XK9ANE Score x6
J3WHNK Score x4
74YKR7 Score x2
HUFV2H Score x8
H8X69Y Score x10
7AD7HE Red Brick Detector
TTMC6D Hogwarts Crest Detector
84QNQN Gold Brick Detector
HA79V8 Character Token Detector
Spells
VE9VV7 Accio
CD4JLX Engorgio Skullus
UWDJ4Y Stupefy
YZNRF6 Trip Jinx
ND2L7W Flipendo
YEB9Q9 Incarcerous
ERA9DR Glacius
H8FTHL Herbifors
QFB6NR Anteoculatia
6DNR6L Calvorio
9GJ442 Colovaria
UW8LRH Redactum Skullus
2M2XJ6 Locomotor Mortis
KWWQ44 Tarentallegra
MYN3NB Entomorphis
2UCA3M Rictusempra
JK6QRM Multicorfors
U6EE8X Slugulus Eructo
Gold Bricks
QE4VC7 Gold Brick 01
FY8H97 Gold Brick 02
3MQT4P Gold Brick 03
PQPM7Z Gold Brick 04
ZY2CPA Gold Brick 05
3GMTP6 Gold Brick 06
XY6VYZ Gold Brick 07
TUNC4W Gold Brick 08
EJ42Q6 Gold Brick 09
GFJCV9 Gold Brick 10
DZCY6G Gold Brick 11
More tricks, tips and cheats for this game are right here - LEGO Harry Potter: Years 1-4 cheats