Just DI out of Kirby's combo or outrange it. I think Ganon's D-Tilt and Fair out range it in Brawl. Shield grabbing would work well too. I feel like Ganon's jab would out range it too. Depending on the dude's skill level, you could just spam Dair all day. I remember there being some deal similar to L Canceling for Ganon's dair that cut down the lag by a lot, but I could be wrong/it be bullshit. It's been years since I tried to main Brawl Ganon. They fucked him over hard in Brawl
If Kirby's survivability with his Down B is getting you miffed, you'd hate playing against anyone who's halfway competitive. In Brawl, there's a fuck ton of moves that allows you to cancel hit stun halfway through it. It's a pain in the ass for someone to cancel all of the momentum you just smacked into them with their nair. You thought that FSmash should have killed them? lolnope
If Kirby's survivability with his Down B is getting you miffed, you'd hate playing against anyone who's halfway competitive. In Brawl, there's a fuck ton of moves that allows you to cancel hit stun halfway through it. It's a pain in the ass for someone to cancel all of the momentum you just smacked into them with their nair. You thought that FSmash should have killed them? lolnope