Having played Color Splash, I'm amazed by how (1) It looks very, very similar graphically to Color Splash, and (2) Thank the gods there are no battle cards.
Everything about Color Splash, from the mini games, the bosses, the writing, the set pieces, were all very very good. It's just that the card system was obscene-- unless you looked at a faq, it was hard to predict what cards you would need for a particular battle or set of battles, and you had a very limited inventory for cards. Made battles very annoying.