Use a video camera probably.

I knew that you could call the Star Fox Team, but I didn't know they actually flew in and attacked.

This isn't really a secret, but it's hard to make happen by accident: Use Samus and stand "inside" the enemy. Start tapping down+B rapidly. Normally you have to wait until you unwind before dropping another bomb, but being in the enemy makes the bomb explode instantly and throws Samus up with the blast, which also refreshes the move's programming and lets you drop another right away. The real beauty of this attack is that you can continuously drop bombs and rise into the air with your opponent, giving them a savage blasting as you go.