Game:Harry Potter and the Half-Blood Prince Cheats/Tips/Tricks/Codes

In Harry Potter and the Half-Blood Prince, Voldemort is tightening his grip on both the Muggle and wizarding worlds and Hogwarts is no longer the safe haven it once was. Harry suspects that dangers may even lie within the castle, but Dumbledore is more intent upon preparing him for the final battle that he knows is fast approaching. Together they work to find the key to unlock Voldemort's defenses and, to this end, Dumbledore recruits his old friend and colleague, the well-connected and unsuspecting bon vivant Professor Horace Slughorn, whom he believes holds crucial information. Meanwhile, the students are under attack from a very different adversary as teenage hormones rage across the ramparts. Harry finds himself more and more drawn to Ginny, but so is Dean Thomas. And Lavender Brown has decided that Ron is the one for her, only she hadn't counted on Romilda Vane's chocolates! And then there's Hermione, simmering with jealously but determined not to show her feelings. As romance blossoms, one student remains aloof. He is determined to make his mark, albeit a dark one. Love is in the air, but tragedy lies ahead and Hogwarts may never be the same again. In the game, players will return to Hogwarts to help Harry survive a fraught sixth year. They will also have a chance to engage in exciting wizard duels, mix and brew magical ingredients in Potions class and take to the air to lead the Gryffindor Quidditch team to victory. Players may even get sidetracked by Ron's romantic entanglements as they journey towards a dramatic climax and discover the identity of the Half-Blood Prince.

There are several ways to collect crests:
# Some are lying on the ground. Just walk over them.
# Some are out of reach but visible.
Cast Wingardium Leviosa.
# Some are on a plateau on the wall or are hold by a statue.
Cast Wingardium Leviosa on a nearby object, 
like a bench or flowerpot, and knock them of there position.
# Some lay broken  on the floor. Cast Reparo.
# Some are stuck in or behind a plant.
Cast Incendio to set them free.
# Some are behind a gate. Cast Depulso to break them.
Then Wingardium Leviosa to get them through the gate.
Then Reparo to fix them.
# Some are behind a spider web.
Cast Incendio on the web and Wingardium Leviosa on the crest.

There are also lion statues who are holding a crest. You have to
complete a sort of mini quest to set it free. This can be a duel or
making a potion. There are 10 of these lion statues to find.

There are also specific banners hanging from the ceiling. You have to
hit these banners, a couple on a row, to  release the crest.
There are 5 of these banner runs.

Then there are firework boxes. Set them of with Incedio to release
the crest. Then cast Reparo to fix it. There are 5 firework boxes to find.

Walk  with Luna
1-3 On the way to the castle with Luna, you come across these.
4 Up the steps past Hagrid’s hut to the left near the trees.

Gryffindor common room
5 On the wall above the fireplace.
6 On the left wall above the archway to the dormitory’s.

Gryffindor boys dormitory
7 On the left between two beds.

Grand staircase
8 From the Gryffindor tower go straight ahead, then left.
Then look to the left, it’s on the wall.
9 Go further down the stairs to the left. You walk over it, can’t miss.
10 At the bottom under the stairs.
11 From the entrance hall go down, left, right, right, it’s on the left.

Entrance courtyard
12-13 On the left and right of the entrance doors on the wall
14 Go to the stairs leading to the boathouse. It’s on the right
on a ledge under the window.
15 There is a lion statue in the left corner.
16 Go out of the courtyard towards the viaduct. To the left
in the corner lies a broken crest.
17 Go towards the paved courtyard. It’s on the left wall, behind a plant.

Viaduct
18  Just outside the viaduct, when facing the bridge it’s on the left
near the steps.
19 On the inside above the big doors.
20 Behind the pig statue
21 Above the archway to potions dungeon.
22 Go up the stairs, through the doors, it’s on the left
behind a spider web.
23  Continue down the hall, it’s above the doors.
24 There is a banner run here.
25  Go through the doors and then right. It’s above the doors
leading to the transfiguration courtyard.

Potions dungeon
26 Coming from the shortcut portrait, it’s on the left wall,
behind a spider web.
27 Next to the previous crest is a small room. There is a crest behind the gate.
28 Out of this room to the left. Go down some steps to the right.
29 Go back up the steps and then right under the arches.
Turn around and look up, is on the left.