I've finished the game. Firstly you need lots and lots of dungbombs, stock up at Gred and Forge's, get as many as you can or just get as many beans as possible then buy as many dungbombs as possible. Use the dungbombs as distraction, play as Ron and lob them away, while the troll's back is turned you, Harry and Hermione sneak past that particular troll and hide in the shadows, just repeat till you get to the door. Once you get used to it its fairly easy. Took me and my brother ages to figure it out.
You kill it
By playing it music. It falls asleep.
To beat the dragon, you have to look on Youtube and watch walkthroughs on how to do it.
Harry calls for his broom and then rides it over the dragon and picks up the egg. there's a lot more in between it, like the dragon breaks free and chases him everywhere.
There is no such thing in the Harry Potter series.
Harry Potter and the Goblet of Fire
They are both famous, but I think Harry Potter is more popular.
a dragon
The Hungarian Horntail.
Dragon ball z
I think Harry got a Hungarian Horntail.
harry fights in the arena with a dragon