Take a look in Dedede's Up Special code. It's obviously coded into his up special, so if you can find the bit that states that he is to be put into freefall after pressing up on the left stick/circle pad, you can probably reverse engineer that code to activate on a different input, and apply it to specific moves or fighters.
I guess the better way would be to know what the variable/function/etc is for freefall. Look at up specials that don't put you in freefall (like sonic or game and watch) and compare them to up specials that do put you in freefall (pretty much everyone else), looking for a specific keyword that appears in all that put you in freefall but not those that do not. Smash wiki tells me the name in the code is "fallspecial" (http://www.ssbwiki.com/Helpless), but I don't know myself if that's it.
Well Bowser's down aerial doesn't go into freefall. Also I'm more interested in the control stick input than the freefall, I know in Brawl/PSA it was extremely easy you would just use an If statement and check if <button> is being pressed. For example an idea is if you pressed up while inputting certain down-aerials, like Bowser's, instead of going downwards you would go upwards or something. Thanks anyway, but I did find something interesting, both the default Dedede Up-B and the Custom Up-B 3 have the option to input Up to enter freefall, and Custom Up-B 2 doesn't, and it lacks that unk command that the other 2 have. However, since Bowser's down-aerial also had it, I have no idea if it is related to the up input/freefall.
I have no idea how those cartridges swapping tricks work, but after getting access to the Homebrew channel from OoT3DHax you can downgrade to 9.2 and install menuhax, or even better install CFW (and even Arm9loaderhax if you wish)
The homebrew menu doesn't rely on the card. You can safely take it out when you're in homebrew.
To install oothax to your cartridge, you either need another 3DS with hacks or a powersaves. The exploit is with the save, and there's no way to inject a save without homebrew or powersaves. This is where smashhax would be more convenient to you, because it's a primary exploit rather than a secondary exploit.
Smashhax is a bit of a hassle, but I'm not sure if oothax with powersaves would be more convenient. Also, I think I've heard that downgrading doesn't work as well on smashhax as on other entrypoints.
Well if he has OOT, and if smashhax isn't the best for downgrading, it would probably be much better to grab a cheap powersaves
I just wanted to say that this is extremely helpful, and I believe more people should use it.
Compare it to the KuroganeHammer framedata, if the hitboxes are the same, you can find out which move is what. I believe S3 is Side-3, which is Side-Tilt. S4 is Side-Smash. Maybe it's vice-versa but I know S stands for Side, Hi for Up and Lw for Down. The aerials are AttackAerial(Lw/Hi/F/B/N) I believe, or similiar. Jabs are Attack 11, Attack 12 and Attack 13 (some characters only have Attack 11, depends on how their jab works, Ganon only has Attack 11) and the Specials are at the end of the list and have self-explanatory names.
