Not bad overall i find it pretty cool, gave me pokemon / SMT vibes (catching / combining creatures).
but even tho i was tossing things to creatures and it said it seems to like it, i still had trouble catching new creatures. idk maybe i was just terrible at it :P completely possible as i dont normaly play catch'em all games. Dont know if there were more (i only had 2 BFly), but maybe a couple different attacks per creature would have been cool.