To start it off, it's not a bad game. Really, it's not. It has potential but as it is to be expected from someone without much skill in this field, it has it's issues. I like the wall jumping mechanic, it's quite useful. The game however would definetly benefit from a tutorial since finding out how things work takes some trial and error. If you put some more work into it, polished it, hopefully improved the visuals, it could become a pretty good game. Right now, however, it is a bit forgetable considering it's rather crude visuals, basic mechanics. However, for a first 'test game', you did pretty good.