One cool feature would be switching each world to the other screen in gameplay, so the touch screen abilities could be used when needed to solve puzzles and stuff, and pluck veggies and enemies, with style!!
One cool way to pluck stuff would be standing right below, or on top, and tapping it once, causing the character to crouch for it, and give it a quick up-wards motion to grab it, It's cool... I'm soo smart *smiles proudly*