Enter your vault
Get reprimanded by Snape when you first enter the school
Beat Flying Lesson 1
Get the Hogwarts Map and escape back to the entrance of the Belowground
Beat Flying Lesson 2
Complete the Charms class
Report to Hermione after getting the book Hogwarts: A History
Report to Hermione after getting the book Moste Potente Potions
Complete the Transfiguration class
Win the Quidditch match against Slytherin
Collect the final ingredient for the Polyjuice potion
Meet with Ron at the Entrance Hall after infiltrating the Slytherin Dungeons
Defeat the Basilisk and save Ginny from Tom Riddle's enchantment
Solve the 3 sliding puzzles
Collect 10 blueberry flavor beans
Collect 15 cabbage flavor beans
Collect 20 banana flavor beans
Collect 25 chocolate flavor beans
Collect 50 tomato flavor beans
Collect 100 tomato flavor beans
Collect all obtainable cards
Collect all 25 chocolate frogs in Hogwarts (the one from Neville in Diagon Alley doesn't count)
Collect all money and food available before traveling to Hogwarts (excluding drops from enemies)
Collect all money and food in Hogwarts (excluding drops from enemies)
Get all Golden Stars
Save Ginny and finish the game with all 140 house points
Get a record time of 26 or less in Ring Practice 1 or Flying Lesson 1
Get a record time of 25 or less in 3 Ring Practice
Get a record time of 35 or less in Ring Practice 2
Get a record time of 20 or less in Flitterby 2