>>724770470
>alternatively you kill the enemy with one character and before the XP balls drop you switch to the character holding the weapon you want to upgrade
This was a big thing, but especially when I was trying to do monster transform, fuck monster transform.
I beat it and the post-game twice (once as a kid, and again later when I revisited it) but I am very critical of some of its elements. I didn't miss that swapping even if seeing the abs skyrocket was neat.