The first stage of the Game was a disaster, I have to admit. I actually tryed to warn the player about the game-change with music (When the time comes to fight the Pigs, a Battle Theme plays on the arenas), BUT, I completely ignored the fact that the music starts with a huge delay, which will leave the player vulnerable for enough time to be killed.
Going into Spoiler territory, I'm thinking about changing Elisa's Attack from fire to a hammer strike - which would make a lot more sense considering what the Pigs represent. And by the time I make the changes, I'll definitely add cutscenes showing the rules - and change of rules - to the player.
Again, thanks a lot for your feedback =)