Good platformer game. The graphics, gameplay, sound effects and music are well chosen.
Only thing I didn't like is the way those dogs jump (just because I struggled a lot to pass that first one :P). They jump pretty far up, and it took a while to me to figure that they just jump if you're close to the ledge next to them. I think you could make they jump lower. This way the player can jump over their jump on that situation, and it should feel more natural.