About cancelling..... its quite simple actually but it requires moves that have the ability to charge. Like you know when your foot or fist is glowing during a combo (when you hold down the button)? While you see an attack charging... press the x button at the same time (gaurd button) to stop the combo so that you can link other combos together. But you need to be fast in order to do it. Heres an example for Goku: the basic KKKKK kick attack has a charge at the last kick. Hold down triangle at the last kick to get it charging and press x while holding triangle to cancel it. Hope that made it easier