Generally, your exploration is limited due to the characters you have, meaning you'll have to come back in Free Play Mode to unlock the collectibles you couldn't collect in Story Mode. You will only have access to the characters that the game gives you.
As you might expect, you will be playing through the story of whatever movie you are in. The first time you play a story level, you will be playing Story Mode. I also describe how I structure the walkthroughs for each game mode. There are several different game modes you can play, which I'll describe here.
This game has plenty of levels for you to play, with 24 story levels and 10 bonus levels. If you like the guide, feel free to show your appreciation with a Steam Award! I appreciate all the points and support you guys have given me! However, working on these guides takes considerable time and effort. These guides have always been and will always be free. Full lists of Joke Spells, Characters, Minikit Models and Extras Walkthroughs for all 10 Gringotts Bonus levels, as well as the 200 Gold Brick Bonus level Complete exploration guides for Diagon Alley and Hogwarts, plus maps of my own design The locations of all 4 Hogwarts Crest Pieces, all 3 Character Tokens, and each Student in Peril in each level in Free Play Mode
This is my new and improved guide for LEGO Harry Potter: Years 1-4! In an effort to make my guides more helpful and engaging, I have decided to rework them! I would appreciate any feedback you guys have about this new format, so be sure to leave a comment or shoot me a direct message!