while the mechanics and everything is there, I have to agree that this really should not have been released to the portal... it's a test and nothing more, by your own admission. the portal is NOT for demo's and half done things. that is what testers are for. if you don't have anyone to test the game for you, ask! I'm sure there's plenty of people here that would be more then happy to help out and give you there feedback on it.
but as such, I have to review with what is here, as since you released it as a full game by releasing it to the portal, I have to treat it as such:
the gameplay is fluid enough, but the hp bars (yours and the boss's) is fairly hard to see. the game is incredibly short with only one fight, no music, and the game gets stuck in the boss room with nothing happening if you win.
I give 2 stars for what is there right now... and nothing more.