First go into the broom shed then pick any flying practice game. Start the game up and when in 3.2.1.Go, press a when the countdown is on 1. You will get about 2 rings worth of boost without going through 2 hoops.
When you use the polyjuice potion, to get out of slytherin go sneek arond the prefect and you can put on the invisibility coat. Pull the lever and your time wearing the cloak will run out so get caught purpously then you can do it again but you won't waste time pulling the lever.
In the Gryffindor common room on the wooden wall by the staircase, the 4th panel on the bottom row is off color. Press B and a sickle will come out.
peeves will fly around your head which gets extremely annoying. keep hitting him with flipendo and he'll go in a suit of armour. hit the armour until it explodes. this will give peeves health but the fun begins when all the armour is gone cuz then his health goes down and stays there.
in the portrait room at the back with the gate, about 2 panels over is a discoloured panel. push it and a switch will come out. pull the switch and the desk will move. push the chair on the switch. go in the room and there is a charms witch and wizard card.
To unlock the cheat menu you need to go to maddam Hooche for Flying Practice and don't beta the best time but complete the task. Then go straight to the Broom Shed and click on Flying Practice 1 and then beat the best time and get the Wizard card. As soon as you see it press The R button up on top and then press the B button to open up the cheat menu. You can do the same with Quidditch Practice with Oliver Wood.