Move the screenpack folder into the data directory of your MUGEN 1.1 folder.
Lower resolution requires less VRAM, making it ideal for massive rosters (500+ characters) without causing lag during the select screen. Asset Consistency: mugen 1.1 screenpack 640x480
A “640x480 screenpack” typically means the UI elements are designed at that resolution. The actual fight viewport (camera) can still be 640x480, 320x240 (scaled up), or even higher if the screenpack supports it. Move the screenpack folder into the data directory