what do u have 2 do when u enter the quest stage with melvin 2 move on???? thats not the end of the game is it?
It's not the end of the game. You can see which adventures unlock which other adventures from the wiki (look at the bottom of the page) to see what's next after the Melvin adventure you mention. You can also see the full list of the adventures to see which ones you haven't played yet.
