Kaphotics

Fixed one of the checks in a commit just now, but these gifts are restricted to 16-bit seeds. Refer to fresh mon's from the encounter database.

Open it in PKHeX, it will tell you it is all 0xFF -- aka there is absolutely nothing in the save file that can be recovered.

Not documented really.

It was hot fixed shortly after release, just redownload the program from this site.

Compile the source code from GitHub for 32bit, or get a new computer that isn't ancient.

Current box is invalid. There's nothing in your boxes?

Try closing and reopening the program.

When saving from tabs, the program checks if the Encryption Constant should be forced to an expected legal value as a result of the Gen5->Gen6 transfer process; a common user mistake->automatic fix. When requesting legality, the program needs the latest pkm data, so it runs it through the saving function before checking. These automated fixes are very infrequent and are often tied to the GUI (like bounds checking against the loaded lists) so it's not something you can call in an automated fashion with the batch editor. You can spend the time making a batch script that does something like =Legal=false =Generation<6 .EncryptionConstant=*PID But it won't be foolproof. If there's not too many, you can just view&set each slot yourself. I suggest using the keyboard shortcuts (control-click to view, shift-click to set), which are described in the About form (accessible in the dropdowns), which is also where control-rightclick Legality (as previously mentioned) is also listed as a tip.

PKHeX applies fixes when you view a Pokémon from a slot. Read the legality report from within the slot by holding control when right clicking the slot to see the Legality option.

There's no encounter in any game where you can obtain an Ursaluna-0 without having to evolve it from a lesser species. That's why no Ursaluna-0 specifically appear in the encounter database. Therefore, the only way to get one is to obtain one of the lesser species and evolve it. The only game that can evolve an Ursaring into Ursaluna-0 is PLA, and for it to originate/reside in any other game legally, it must have traveled through HOME and obtained a valid tracker. If you're wanting the program to say it is legal, then you must do every step that can't be cheated. If it's just for local play, then you don't need to care about what programs say; the program does not stop you from putting it in your save file. The program even allows you to change HOME tracker severity if you really want to turn a blind eye to the issue.

Take your save file now and open it in PKHeX. Export it to fix all checksums, and it will still work when you load it back to your game.

Emulator error, where it gave you savedata from a previous play session on a different game.

Putting a fake HOME tracker does not make it legal at all. PKHeX cannot query HOME's server to see if it actually was transferred correctly. Use the encounter database instead of guessing which values you should put. Keep in mind that max scale/height/weight is incredibly suspect and anyone looking at your data would be immediately suspicious.

PKHeX won't have recognition for completely inaccessible encounters. It displays the "what encounter even is this?" message, because the list of encounters it has is 100% exhaustive besides maybe some undocumented/unimplemented legitimate event.

Correct; in the GitHub issue I linked there is an associated draft of changes that does the parent lineage exploration, but there are some cases it doesn't currently handle and isn't super efficient in its exploration logic. No eta on when it will be implemented fully because it doesn't impact the current online games, only gens 2-5 origin.

How would PKHeX know what HOME knows? If HOME knows it wasn't nicknamed, and it was transferred to a game context that should never be allowed to edit it... then you shouldn't edit it.

Hold control when viewing legality to get the verbose report as pictured. Transferring from Gen2->Gen1 requires wiping any "new" move like Heal Bell, and you can't use Stadium 2's relearner to learn TMs from other games. The program currently permits moves if it can be an inherited levelup move shared by parents (such as, it's in its levelup moveset), or if it is in its permitted eggmove list. The program (at the time of writing this) does not look to see if it is actually possible to originate from parents that can pass such combination of moves. This isn't related to Generation 3.

PKHeX currently doesn't verify egg move inheritance beyond "is it possible assuming parents exist" not "does any parent /legally/ exist" Gen 2-5 Allow Combinations of Egg Moves · Issue #4426 · kwsch/PKHeX

If they are legal in PKHeX, they can be traded online. Use PKHeX's encounter database instead of creating something from scratch, and if you are creating something that originated from outside of S/V, you must generate it in the game it soonest enters HOME naturally rather than directly injecting it into S/V (HOME Tracker, error 10015).

Is it really that difficult to play through the game again up to that point? You should be saving in game and not relying on save states. If nobody has posted a save file progression zip, then you'll likely wait longer for someone to give you a save file instead of just doing it yourself.

Generation 1->5 games are single language only, and only have the localization text for the single language it is built for. Only in Gen6+ did they allow for language to be selected. The cheat code you listed is irrelevant to Pokémon games.

Sure, if your delay is possible to hit, then the results from those tools would be a viable seed/tid/sid to use. There'd still be some invalid correlations within your save file (like other random data derived from the seed like trainer class, if that's applicable? Been too long for me to remember) but it won't have any impact on the Pokemon you receive.

I don't see what you are referring to; so long as you find a valid seed as I mentioned. It's not guaranteed that an arbitrary combination is legal.