I had once tried speeding up the death routine to "hide" that glitch, but it just didn't look right. I'd love to find a fix someday, though.
If you're using this
walljump, search this
ORA $75 ;swimming
and add this between them
The other wallkick doesn't have this glitch.
Also have been playing through this and is really fun, and challenging. The yellow switch was a torture but other than that it's fine up to where I am (I'll start Take No Prisoners).
You should submit this to the section, even if labeling as Kaizo is needed