a surprisingly fun and simple game mechanic, there were a few things that if improved would make this a five, but otherwise if a bit of a fun game was the goal then it was reached, so a job well done! :)
The shop mechanic was simple and enjoyable, as well as the leveling system, the things that could be better in particular are how it feels when being attacks, at the moment it's more like you're being hugged by the enemies, so some definitive moves on their part would be better, as well as some polished background art.
Nice work :)