Pikachu ROM Download for Nintendo (NES) on Emulator Games. Play Pikachu game that is available in the United States of America (USA) version only on this website. Pikachu is a Nintendo emulator game that you can download to your computer or play online within your browser. You can also download free ROMs such as Pikachu Bros (Mario Bros Hack), Pikachu Y2K and Pikachu Bros Vx.x (SMB1 Hack) as shown below. Pikachu works on all your devices in high quality.