For a first game, I really love the models and the work put into it, it's a cute little game with potential for sure :]
However there are a lot of issues that do come with this being a prototype, no background music or sound cues makes the game a bit awkward and no real explanation of mechanics on how to deal with your enemies and obstacles in game (such as platforming up the wall, fox warning not being towards the beginning was a bit strange, things like that.)
Overall a good 3.5/5, with tweaking it will definitely improve as the developer works more at it!