I'm sorry but I kinda agree with @
Sleek Media
about the luigi matchup. It's not easy nor I think it's in our favour. Saying it's 3-7 is going overboard though lol.
No need to flame either.
About pellets on shield... When you shield them (not power shield, which is actually easy), they have 12 frames of lag (11 frames of normal shield commitment + 1 frame of shield stun since they do 2%. Yeah, hitting a shield replaces shield drop lag with the shield stun lag).
12 frames is the same amount of time we have between firing pellets. So not really an advantage even if he doesn't power shield them, which a seasoned player in the matchup will.
Pellets are still great in this matchup because they break dashes in their initial startup and fireballs. But saying "lol its luigi he will never get in" is wrong. Pellets are very hard to work for someone unexperienced in it, but not for someone experienced.
Just power shielding them + walk can work. When Luigi gets close Mega has nothing, so we have to risk the grab in or try to cross him with jump. Luigi covers both options very well so it's a hard time, and if Luigi gets a hit in it hurts so ****ing much.
On the other side we have that Mega Man has the combo of being heavy + fast faller, which means Luigi combos us super hard. Easily getting between 40% and 60% over a single grab. Ugh.
Mega has also the standard issues getting the kill he usually has. Luigi is not easy to gimp unless he's forced to use side B, which is easy to Bair, but we risk the 1/10 chance of getting hit by lose-a-stock RNG.
I'm currently taking up a new main (I don't think Mega has what it takes) and I believe that in the top tiers he only beats Villager and maybe Rosalina/Diddy (he's ok against Ness and Luigi too but I think both win it).
Oh I also think Falcon isn't that hard for Mega compared to other top tier chars.
ps: I'm talking customs OFF since I very rarely play with customs. Customs definitely improve Mega but I'm not sure if it's enough.