Here are 2 ideas for fun once you’ve beaten the Pokémon League:

• Have a battlishious blast in the survival area — where you can battle companions & gym leaders whom you’ve already beaten.
• Catch Heatran in stark mountain and fight your rival every Saturday/Sunday

To get justice type in#1058 and get it in Garage.

To get the Bag Boy type in #1046 and then get the bag boy in garage.

To get the Bear type in #1048 and get the bear in your garage.

To get Bulldog type in#1050 and get the Bulldog in your garage.

to get bulldozer type in #1051 and get the bulldozer in your garage.

To get the FBI type #1054 and get the FBI in your garage.

To get the Mongoose type in #1062 and get the mongoose in your garage.

To get the police helicopter type in #713 to get the helicopter in your garage.

To get a dirt bike in your garage go to cheats and type in 805 and then automatically get a dirt bike in your garage.