If you are on a standard, non-jailbroken PS4 with the latest firmware, follow these steps to get your hands on a legitimate Metal Slug PKG.
A: Yes, Metal Slug Anthology is the official all-in-one PKG containing seven mainline titles. However, it does not include Metal Slug 7 (DS) or Metal Slug XX (which is an enhanced version of 7). Metal Slug Ps4 Pkg
Disclaimer: This information is for educational purposes and backup archival of games you legally own. Circumventing copy protection may violate laws in your jurisdiction. If you are on a standard, non-jailbroken PS4
If your PS4 is on firmware 9.00 or lower and you have successfully jailbroken it using a USB exploit (via GoldHEN), follow these steps to install your Metal Slug PS4 PKG file. If you are using a jailbroken PS4 solely
We live in an era where retro games are readily available and affordable. SNK has repeatedly re-released these titles on modern platforms. Before hunting for a Metal Slug PS4 PKG via unofficial channels, consider:
If you are using a jailbroken PS4 solely to run homebrew or backup your legally purchased discs, you are on shakier but still defensible ground. Distributing or downloading paid PKG files from torrent sites is unequivocally piracy and harms the retro game market.