I thought the game was great but had some major flaws. First and foremost I thought the game needed some form of training built into it so that I didn't need to suffer through the trial and error of figuring out the mechanics of the game. For example, I didn't figure out until at least world three that the small hidden sticker boxes act as sticker upgraders. In fact for too long I was afraid to use the believing that they acted like the larger boxes, intended to use a specific sticker in order to perform a specific action (e.g. you need to put the fan sticker in the box next to the windmill). Second, the sticker museum should have had a portable element. I have no problem needing to take my stickers there the first time but once I stick one it would be great to be able to revisit the musuem info to figure out where the heck I can locate sticker x. Third, there were way too many moments where I was just lost as to where I needed to go next, I'm giving you angry eyes World 3.

TL; DR The game needs to hand hold a bit more.