The year was 2008, the golden era of "abandonware" forums and sketchy mediafire links. You’re scouring the internet for a way to play the arcade classics without burning through a roll of quarters. That’s when you see it: a thread titled "METAL SLUG COMPLETE COLLECTION FOR PC WINKAWAKS 165 HOT."
System Requirements:
/XX) are generally not included in this specific emulator bundle because they run on different hardware (Atomiswave or handhelds) that WinKawaks does not support. Key Features of WinKawaks 1.65
provides several technical advantages over original arcade hardware: Enhanced Compatibility : Version 1.65 added drivers for specific ROM sets like Metal Slug 2 and fixed various graphical issues. Cheats and Hacks
Note: Metal Slug 6 is technically not supported on standard WinKawaks 1.65 as it ran on different hardware (Atomiswave). If you see a "complete" pack for Kawaks, it usually stops at MS5.