"GAMEBOY SECRET CODES" by BradyGames for Gameboy Color
-Excellent Condition
-How much is it worth?

"VOL.2 ULTIMATE UNAUTHORIZED NINTENDO GAME STARTEGIES" by Bantam
-Good condition
-How much is it worth?

"SUPER MARIO BROS/DUCKHUNT"
-Loose cart with half missing label and black marker writing "GOODWILL"
-How much is Russian Rubles or Wooden Nickels or Pennies?