Thank you for looking! This is the WonderSwan software "Super Robot Taisen Compact". [Operation and Condition] - Confirmed to boot on actual hardware (WonderSwan Color). - Terminals have been cleaned with anhydrous ethanol. - Backup battery (CR1616) has been replaced with a new one and socketed. - Evidence image of save data operation is available (see image). [Appearance] - The label has some age-related sun fading. - There is a slight quirk with insertion. It may be difficult to boot if inserted all the way, but it boots more easily if inserted slightly raised. - No other noticeable damage (age-related wear and tear). - Cartridge only (no box, manual, or case). As this is a used item, please refrain from purchasing if you are looking for perfection. You can play with peace of mind on your actual hardware ♪ Thank you for reading to the end. #SuperRobotTaisen #WonderSwan #KaltNeon