Pop-ups are not the best way to teach your users how to play. I'm playing this because my brain is tired. But if you have instructions that pop up at relevant times in the relevant locations, it is more user-friendly.
Good game. Loved the soundtrack -- very soothing. Would download an mp3 of it for background play while I'm working. The game itself is rather short and easy... but I suppose some games are meant to be that way.
defeat the ender dragon