Falco is probably my most hated MU next to D3. There are so many things bad in this match-up, and next to zero good. Everyone seems to think that the chainspike is the worst part about this MU when that's the farthest thing from the truth. While that is a big factor, Falco doesn't even need to chainspike to make this match-up a nightmare from the unholy depths of heaven.
The primary issue being his, yes, you guessed it, lasers. At first glance, these little *******s are just a nuisance used for chip-away damage. But to the contrary, that is probably the least of its uses in this MU. You see, Falco uses his lasers primarily to force approaches and for follow-ups. Here, the issue is follow-ups.
Against a laser > follow-up like DACUS, jab or grab, Ganon has literally no framesafe options at all. So if you're being lasered, you can do absolutely nothing about it but PS approach. But even on PS, you still don't have a frame advantage on Falco is he SHDLs. Thanks to Falco's insane jumping height, it's also impossible to do FH aerial approaches.
But, there are a few exploits in this MU that can at least somewhat help. Here's what I suggest as an overall strategy:
-Do not try to shield lasers at low percents. His lasers HELP you at low percents. They protect you from CG spikes. My advice is to let yourself get lasered (although don't be TOO obvious about it) to around 35%. This way, unless you're directly next to the ledge, you can DI out of the grab.
-We don't really have a choice but to approach in this MU, so here are some things to expect when you do approach. Expect everything Falco does to be done out of a SHDL. Only try to attack when you are extremely close. Don't be fooled into thinking he's open after a SHDL, since it autocancels. Wait for him to do the follow up move, then strike.
-SideB is another big issue in this MU, since it's so fast, that Ganon theoretically cannot punish it. But it is predictable with most Falcos. If they're doing retreating SHDLs, always expect a SideB. The best punishers for this are Nair and Dair to stop the SideB as it goes under/towards you.
Offstage
Offstage Falco is pretty garbage. But he can still recover well with his SideB. IF you don't read it. With linear recoveries like Falco's, it's very easy to put them in a tough spot with mindgames. They have two options: sweetspot the ledge, or go onstage. If you knock them very far offstage, run towards the edge as if you're going to edgeguard them. Jump back, then punish. If they're close, Falcos almost ALWAYS buffer a sideB to get back on, so if you knock a Falco offstage, but only by a little, don't bother going offstage, they'll always sideB immediately.
Another alternative is NAir. NAir shuts down SideB. And if Falco is below you and using upB to recover, it's sometimes best to use NAir instead of tipman to gimp, since Ganon's *** literally gimps him very safely.
Random tips
-DO NOT roll inwards after being daird. Falcos learn to punish inward rolls with Fsmash.
-DO NOT try to punish jabs. Just DI out of them.
-DO NOT try to DAir as an OoS punisher unless the opportunity is obvious.
-DO NOT try to iDA for an outward roll or rechoke. Falco rolls too far.
Counterpicks
Brinstar. Not much needed to explain why. Puts tons of pressure on his recoveries, hinders SHDL autocancels, etc.
BF. Not ideal, but it relieves some of the laser pressure, and Falco isn't too monstrous in the presence of platforms. In fact, they hurt him more than they help.
Lylat. Hurts his recovery due to the inability to safely sweetspot the ledge and the tilting platform makes SHDLing difficult. You won't be using DAir much in this MU anyway.
I honestly give it a 95:5. We have options, but they're so circumstantial and require such perfect reads and reactions that it's insane to consider them enough to stand up to the horrendous things he can do to us. Ganon's third worst MU, in my opinion.