^he's talking about his female friend, who's using Sonic. :l
but spamming PK fire is stupid and avoidable/pshieldable/shield/jump/airdodge/blahblahblahslowprojectile
If your friend is any good and actually does things like punish your landing lag, rolls, and etc, then avoid the situation of rolling by jumping WOP style and keeping out an attack aura with your aerials `.`;
Stay with a shorthop aerial game- shorthop often and avoid being on the ground. Lucas' aerials when timed correctly are a tough wall to beat as Sonic.
Basically, there are some things that make Sonic punishable/predictable: Dsmash, Usmash, Spring>D-air, Homing Attack. You can probably shield and punish a Dsmash, walk away and smash a Usmash, grab/smash/aerial before a D-air lands on the floor, and walk away+punish Homing Attack's landing lag.
If she's being annoying and running to the opposite side of the level every time, then I'm sorry for you `.`;