Side Pocket (Japan) is a great game, and it's been around for few years. That Sports game under MAME 2003 platform. The game was released on 1986 developed and published by Data East. To play this game, you need to download the lastest Emulator like RetroArch, MAME and load game then enjoy it!
1. Select MAME 2003 platform and search game version as you want then download it from RomsBase.
2. Download latest version of “RetroArch” from official website, then install on your PC.
3. Run emulator RetroArch, load the rom and config joystick then click “play” and enjoy it!