May I know the program you used to make this? I want to make a mod as well, eventually. ^^;
It depends, on the pc I just downloaded the gacha club edition and JPEXS Free Flash Decompiler, the rest I looked for on the internet.
On android it was more difficult, because I had to decompile the android gacha club with Apktool and i changed for Apk Easy Tool and put the swf of the gacha club edition of the cell phone in place of the original one, and I redid the changes on the pc, and it took me 3 days...