Awesome
I don't know what else to say other than: This was great. I didn't expect much since you said it was supposed to be part of a collaboration but I'm glad to say I was wrong. Fight was pretty cool and for not having fight music ready, you sure picked a decent substitute. The only real thing I didn't like was the way Ypshi lost. Did you really have to slice him in two... Oh well, can't havve everything right...
Great job, 4/5 from me. I do hope to see another one of these, maybe a Mario Vs. Luigi one. Now that could be great =]