Pretty good game and solid vibe, few small notes tho:
1: you can click sunny when he's hidden behind stuff (main example is that one level with the truck where you can just click the truck in the place sunny would be) then again doesn't really mater for most levels so its not really a big deal
2: This is really specific you can actually change the icon for the application from the game maker logo to something else by going through: Game Options->Windows->Images (you'll need to make it a .ico image but there's image converters for that)
Overall: hell yeah, good game + sunny is pretty cool