So what exactly makes the combat and controls unique? I backed it because it's Platinum and I had always wanted to check this out, but at a glance, the gameplay looks like a character-action Anarcute
The combat is mostly standard Character Action fare. You have your enemies, your variety of weapons and moves, your dodge and blocks, and basically all that Platinum goodness.
However, the character you play as makes all the difference here. Or characters, as it is. You are the Wonderful 100 (pronounced One-double-oh), one hundred masked defenders of justice, and you control all of them at the same time. By drawing on the ground. With the right stick, a line of Wonderful Ones extends from the group, draw the corresponding shape with your line of heroes to unite into huge Unite morphs, basically your movesets, and take on your foes.
What this means is that mid fight, you'll be drawing with one hand, and inputting moves with the other, so your Wonderful Stinger comes out with the Sword, then you turn into a Hand to juggle the enemy, before becoming a tombstone and dropping through them, then becoming a gun to juggle them a bit DMC style.
It is extremely chaotic initially, but when it clicks, you will feel like you are actually controlling 100 super-heroes at the same time.
But it is better shown visually, so have a video:
In fact, have another: