LEGO Harry Potter: Years 1-4

Here's a link to a guide I made. It has the location of every collectible in the game - including Red Bricks, Gold Bricks, Students In Peril, Crest Pieces, and Characters.

http://www.xbox360achievements.org/forum/showthread.php?t=24...

A majority of the 100% involves getting Gold Bricks, since there's a few different things you need to get them all. Make sure you actually buy all the characters and Red Brick extras (characters are in the 1st Diagon Alley shop, Red Bricks are upstairs in the 2nd shop). I believe you also have to buy all the extra spells in the 3rd Diagon Alley shop, and make sure you actually beat the 200 Gold Brick bonus level (the one you get Voldemort in).

Lastly, sometimes the achievement takes a while to pop - I ran around a bit before it showed up. Like in other Lego games, you may need to go replay a level and it will unlock after you beat it.

**Please leave a comment/message me if you vote negative or see an error, I'll try to help :)**

RadiantViper's Collection Guide is great. I highly recommend starting there.

I was stuck on 49/50 students and thought I was glitched. I assumed that the student I was missing had been credited to my son's account when he had been playing on the second player in co-op. I was about to delete my save and start over when I found a glitch that recovered my missing student in peril and a gold brick. This is worth a try before replaying the entire game....

Go to the clocktower. Use the time turner to turn back time. Exit to the leaky cauldron. Go back to Hogwarts. You will be taken back to the clock tower. At this point my missing studen in peril showed up. When I returned to the leaky cauldron, my gold brick count had increased also.

I can confirm that two other people have had reported luck with this. This game is glitchy so it may help you, but it may not.

Getting 100% is purely about game progress and collecting the items & tokens in the game:
* Finishing all the levels with all the crests, students in peril, character tokens and true wizard in each level.
* Exploring Hogwarts to find the rest of the character tokens, students in peril and most importantly, the gold bricks.
* Complete the bonus levels in the bank vault of Diagon Alley.
* Finish the Voldemort bonus level in Knockturn Alley (all 200 gold bricks required!).

What you don't need to worry about:
* Killing X number of Y (with Z).
* Doing X with character Y.

Here is the achievement checklist.

Story







Characters
Oddly, there is no achievement for getting all of the characters, just for a few odd sets. Remember, in addition to finding a token, you must then also purchase the character.



Remember that to get Voldemort requires you to have all 200 gold bricks.

Collectibles








Actions
The only actions you need to undertake is rescuing all the students in peril & getting True Wizard in all the levels. Others, like the time turner, are awarded in the pursuit of gold bricks.

Something i found while playing through. Was the libary glitch that affects a lot of people in the first libary, where the age line is. If the gliitch has affected you try using a polyjuice potion and turning into barty crouch (senior) This allowed me to walk straight across the age line. Just remember to have a dark magic user with you when you go into the next libary or you will be hit with the next glitch!