This is not my game - this is a game made by @beagleclub. However, the camera button had a few problems - so I fixed them. The main problem was that the costume was mostly transparent so it wouldn't detect the mouse very well.
Making the camera button work as requested - https://scratch.mit.edu/discuss/topic/120828/ I also put a margin around the "New Game" button but screwed up the font in the process. :P