Way #1: Gameboy
Way #2: Gameboy Advance
Way #3: Gameboy Color(They come in Pokemon edition, too)
Way #4: Nintendo DS
Way #5: Nintendo DSi
Way #6: Nintendo 3DS
Way #7: Nintendo 2DS
Way #8: Gameboy Advance SP(the flipscreen one)
Way #2: Gameboy Advance
Way #3: Gameboy Color(They come in Pokemon edition, too)
Way #4: Nintendo DS
Way #5: Nintendo DSi
Way #6: Nintendo 3DS
Way #7: Nintendo 2DS
Way #8: Gameboy Advance SP(the flipscreen one)