Unlocking characters in Dragon Ball Z: Shin Budokai - Another Road (Shin Budokai 2) is achieved by progressing through the story mode and completing specific chapter missions. PPSSPP users can instantly unlock all characters by downloading a 100% completion save file or using CWCheats. For the full list of character requirements, visit Dragon Ball Z: Shin Budokai - Another Road – Save Games
Legal ways to access all characters
After cheat/save – all 23 characters available immediately. dragon ball z shin budokai 2 ppsspp unlock all characters
Goku Super Saiyan 4: This is the rarest unlock. You must obtain a B Rank or higher while fighting Kid Buu in Chapter 7. Unlocking Transformations Unlocking characters in Dragon Ball Z: Shin Budokai