Hey!
First of all, great game! I love the cute graphics and the sound effects are just awesome. The level design was also really good, it was a lot of fun to play it. The game has also really nice controls, I love how the character feels heavy when jumping. Maybe some more work on the theme would have been great but other than that this is a very well done game!
Congrats on making it alone in one week, it was a great experience!
I would love to have you playing mine too, if you don't mind of course! ^_^