Oh boy, Being gone for a day, there are alot of un-answered questions!
How do I change the catching chances of a Pokemon?
Look in the 'Toolbox' Section of this site, for a tool called "Yet Another Pokemon Editor" or YAPE, it is the best pokemon editor ever, you can use it to change the 'captureability' of a pokemon. (Like how a Rayquaza is a 3, and a pokemon like pidgey is a very high number, like 200... I cant remember the exact number.)
I want to replace the ??? pokemon with a dp pokemon but in unlz gba I see only 1 ??? at 1172 so where can I find the rest ??? pokemons?
You do not want to replace the ??? image. BUT, you need the offset of it.
What you need to do, is insert the pictures of the Pokemon that you want.
THEN, you need to open your ROM in a HEX editor, and search for the pointer to the offset of the ??? image. When you find the pointer, you should rewrite it, to have it point to our inserted image. You have just replaced one of the free slots with a new pokemon's picture. Repeat this process to insert the rest.
Keep in mind, you can only capture these Pokemon if your Pokedex s disabled, or if the Pokemon is given to you in a givepokemon script, because if you capture one wild, with hte Pokedex turned on, you will cause the game to freeze.
how can I change the color of a shiny pokemon?,I want to replace the shiny onix with the crystal onix,so to do that I change the gold colors into crystal colors...
I'm planning that it would be like the red gyrados,as an overworld sprite...
You will need to edit the shiny pallet.
Go to the 'Toolbox' Section, and look for HackMew's Toolbox, and download the Advance Pallet Editor, or, APE. Then Open up your game in unLZgba, and go to Onix.
Change the pallet to the shiny one, and you should see the pallets offset.
Type that offset into APE's search bar, and click the "Compressed Pallet" check box, and start the search. When you have found the Pallet, you may feel free to edit at will.
How do you cange the OW of the hero DURING the game, as in while you are playing (like in a script). I know its possible i just REALLY need to know how. Help plz!
How about you search for:
[Archive] The Rom Hacking Newsletter 2008
When you find that thread, you should take a look at Issue 17, the info you will need is there, in the Tips And Tricks section.
(Keep in mind that when you DO change your sprite, the effects are NOT permanent, I mean, if you walk onto another map, or go through a warp, you will change back into the player you started as.
How do you make a titlescreen? You know how at the beginning of a game it has the screen that says press start how do I change that for my hack?
As sasquatchd00d said, there are plenty of tutorials in the Documents and tutorials section.
BUT, I'll give you the names of some programs you may want...
unLZgba
InfranView
Cyclone OR NTME (Nameles Tile Map Ereator.)
APE (Advance Pallet Editor)