I assume you mean what that is called. The answer is improvisation, also know as improv.
Just off the top of my head...young, yellow, yummy, yiddish.
Mweor, pocket puma pets, and dragon empire off the top of my head.
Me thinks 101 just counted off the top of my head
Off the top of my head. b.skull dragon is the 1 i know for sure. Its fusions with summond skull
The best one (off the top of my head) is God Hand. It's easily one of my favorite games, since it's crazy as hell.