(Sorry for the late review, been M.I.A)
This is such a wicked release.
The sprite work is amazing, the A.I is fair & balanced, & the execution from you is great as always!
Thank you for this release!
My feedback would be:
I also noticed that the spinning hammer sound would constantly repeat one time facing Thor.
(Someone in the thread mentioned this already)
Also, during his win pose... His paddle for the table tennis ball disappears. Is this on purpose?
I find that strange if so... (since the ball is bouncing on air)
I haven't noticed anything (yet) with the Space Ship hyper,
(That is a pretty bad azz hyper idea though that you implemented, I smiled with joy when I seen it)
but if I do, I will come back here & mention it.
(& of course if I come across anything else)
by 
