You can get a large amount of Mini-Crests one time only, when you have used the Luck Potion and are making your way to Herbology. At this point, every time you use Diffindo to get the Mini-Crests to appear, you will get the full amount of Mini-Crests available, due to your luck. Get as many as possible at this point to help reach the 25,000 pieces goal.
Collect the indicated number of crests to unlock the corresponding bonus.
Find the crest you want to knock down. Cast Wingardium Leviosa on the object you want to use to knock it down. Note: This object can be anywhere and does not have to be in throwing range of the crest. Using either a Dung-bomb or an Exploding Cauldron is recommended. Once the object is in the air, hold [Run]. You can now walk around the castle and grounds while still carrying the object in the air. Make sure that you keep [Run] held until you get to where the crest is located. Note: During this time Harry will not run fast. Throw that object at the crest to knock it down.
Created by DulleNL.
Playing match is very easy. You must fly through all the stars in the sky to catch the snitch. Passing all stars is not required if the star's color is going from red to light. This indicates your time is going over, so try to pass through most of the stars in the sky.