Request: No items lost at Colosseum

It would be awesome to have a complete rewrite of the coliseum.
Personally, I'd rather have a system where you get to choose which opponent to face and then get charged an entry fee.
I've never liked the idea of betting items and not knowing ahead of time what opponent is triggered.

That's a completely different Colosseum style but I like it too.
Having random bosses sitting in their cages waiting to be released and killed for a prize.

But the way FF6 uses it, it basically asks you to save before you try and when you fail, you go through the process of a soft (or hard) reset and trying again immediately or later. Having a 'don't lose items when you fail' gets around  that.
But not if you win and replace the item.

I think some items have this quality to them... it might be associated with instant death or retreat? I'm not sure. You generally don't lose an item when you get [Sneeze]'d by Chupon but I've noticed this with some other battles I've lost.