Damn, I thought with SGDQ going on and the game being out just today, there wouldn't already be a pretty huge thread haha. I'll definitely try picking this up, see if I can find anything useful as well.
Some boss strats I thought of during the mech boss (don't remember which knight it is):
1) During phase 2 when he drops the balls, if you can place yourself directly under his head, phase for invulnerability, and then pogo, you can pogo off the ball directly to the head, allowing you to quickly get back up there without waiting on the platforms.
2) When he dashes forward, if you can stay on the left side while he's charging you can position yourself to pogo his head all the way back to the right.
3) The missiles at the top fire left -> middle -> right. If you can pogo when left/middle goes off, and then land on the LEFT side of the missile launcher you can dodge the right missile and resume damage dealing.
1) During phase 2 when he drops the balls, if you can place yourself directly under his head, phase for invulnerability, and then pogo, you can pogo off the ball directly to the head, allowing you to quickly get back up there without waiting on the platforms.
2) When he dashes forward, if you can stay on the left side while he's charging you can position yourself to pogo his head all the way back to the right.
3) The missiles at the top fire left -> middle -> right. If you can pogo when left/middle goes off, and then land on the LEFT side of the missile launcher you can dodge the right missile and resume damage dealing.