I agree that the game isn't exactly user-friendly. One of the things I disliked the most, however, was the tutorial--I'd much rather have on screen text literally explaining to me what to do rather than obscured, faint background images. I'd specifically like to know every key for every character; if the tutorial worked those things in, I think the game would be a lot more fun for me.
Because the tutorial was so poorly set up, it made the rest of the game much harder than it should have been. I didn't get far, given that I didn't really understand what I was doing. Is there a way to switch characters? I assume so, but I have no idea how, since, after hitting every button on my keyboard I found nothing of use.
Probably could be a really great game, but I think it definitely needs a bit of work--namely a much more expansive tutorial. I'd love to see it longer, more explanatory (text-based) and perhaps even giving a bit of background on the game. What exactly is even going on here, anyways?