However, I can offer you a general informational write-up about Metal Slug 7 itself: is a run-and-gun action game developed by SNK Playmore and published by Ignition Entertainment. It was originally released for the Nintendo DS in 2008.
If you’re looking for emulation help, I can only discuss it for legally owned game backups or open-source/homebrew software. Metal Slug 7 -U- www emugamesworld com.zip