I didn't think this deserved its own thread, so I'm just going to post it here. Seems sorta useful. So if a moderator feels it worthy of creating its own thread, please do so. I didn't want to clutter this place up, and also wanted to keep it a secret
Found this lil gem while messing around in training mode. How it's done is, first execute Ermac's Soul Charge move B+2, and continue to hold 2. Now, while you're holding 2, execute any of Ermac's EX moves, and upon either releasing 2, or allowing it to finish its animation itself will cancel out the B+2 and replace it with the EX move you've inputted. That's all there is to it. You can also input regular special moves, but they won't cancel the Soul Charge animation, instead, your special move will come out once, and only if, the Soul Charge is blocked or hits.
While holding 2 during the B+2 animation, if you tap G at any time during the charging animation, you can cancel that into a forward run without holding having to press the block button again. This allows you to cancel into an attack almost immediately. You can use this to bait jumps from your opponent and things like that.
Utilizing the tech from the former vid, you can use this to also cancel into Ermac's special attacks almost instantly. You charge up the B+2, single tap (don't hold) Block during the charging animation, tap F,F to initiate a run, and then cancel that into your special move. Kind of confusing, but it really isn't once you grasp the concept.