Alright, first off just a streaming thing in general: Don't do the "decrease game audio when mic is on setting". It makes the match unenjoyable to listen to, and it's very hard to make out what you're saying anyway. Just play with the game and mic volume until you find a nice balance where you can talk over it but not be too loud.
Alright, for the matchup:
- Don't use uncharged mega buster on the hydrant unless Pac has already hit it. All it does is give him complete control over how he will launch it at you.
- Don't over-respect the hydrant. It doesn't need to be destroyed immediately. You can jump over it and use the water to your advantage. Pac also loses the option of throwing a hydrant while one is out, so he's more vulnerable in the air.
- You go for hard knuckle offstage a lot when there's no time to land it. Put some MBs out, or go offstage and read an airdodge to land an aerial of your choice. Sitting on the edge with LS up isn't a bad option against Pac either. Put that advantage state to good use! You got a lot of reward when you finally threw some bAirs at him.
- Try to short hop those pellets more...Break Man style isn't gonna leave you in a very good position, and he punished you a few times for it.
~ Pac has just as much trouble getting kills as we do. Know his options and make those stocks last to 150%. You cannot stop the melon, but you can catch it easily.
For the Pac:
- Everything was good until you got way too aggressive in the later games. Mega Man loves it when non-rushdown characters try to rush him down. You have to exert pressure on Mega Man by charging the key and making him feel like he has to come to you.
- You missed some followups by charging fruit instead of spacing out landings and such. Everything below melon gets stopped by pellets, so unless you have the mixup, you shouldn't be playing with small fruit charges. It's easy enough to get away from Mega and prepare whatever you want, but advantaged states at close range are valuable and shouldn't be wasted.
- NEVER jump out of air shooter.
- Don't let him bait you into attacking through pellets. Many characters can beat them with aerials, but Pac is one of the worse characters for it. Again, just put a hydrant down and charge up a melon or higher (I recommend key). Force Mega to choose between defense or taking a risk whenever he throws a projectile. If you hit him with a key, charge another immediately. People HATE that, and it's really going to condition him play around potential key throws.