Unfortunately Rose-Quartz version has been cancelled :P Did you manage to play as the dinosaur that the rival has? There is a way to get the dinosaur as your monster.
Viewing post in Monsprites - Amethyst Version jam comments
OK I 100% the game and I gotta say: Nowis you mad genius! Look at what you made me do! 🤣 I originally thought the "create monsprites" phrase was a typo of some sort, little did I know it held a more sinister meaning...
But seriously this is an awesome game! Drifty's stream didn't do this game justice! You are truly an inspirational dev.