Even with a high-end device, don't expect modern arcade games from the 90s and beyond to run at full speed or with perfect compatibility. Games like Outrun and the Mortal Kombat series are poorly optimized and require at least a 1.5 GHz dual-core device.
Setting up requires a specific ROM set to match its underlying emulator version. If your ROMs don't match version 0.139u1 , many games will fail to load or show errors. 1. Download the Emulator and ROMs
How to Install MAME4droid (0.139u1) ROMs from Archive.org: A Complete Guide
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Open your file manager and go to your Download folder where you saved the Archive.org zip files.
Now, go enjoy Street Fighter II , Pac-Man , Galaga , and thousands of others – all running perfectly in the palm of your hand.