In no particular order:

• GungHo for the virtual crack that is Puzzle & Dragons!
• BetaTester for Puzzle Dragon X.
• Everyone that has contributed to the Puzzle & Dragons English Wiki.
• Uknown_PC and Clessasaur for help with sourcing and understanding monster data.
• Many random people in #pad (SynIRC!) for being guinea pigs and providing feedback/suggestions.