Download New! Metal Slug 3 -pcse00665- -v01.00- .vpk ◆

That happens if you used a bad dump. A proper VPK of PCSE00665 v01.00 is pre-decrypted. Try a different source or convert to NoNpDrm format.

This guide assumes you have a PS Vita or PSTV running custom firmware (e.g., Enso or HENkaku). Downloading and installing backup copies of games you do not own may violate copyright laws in your region. Proceed at your own discretion. Download METAL SLUG 3 -PCSE00665- -v01.00- .vpk

: This indicates the version of the content. In this case, "v01.00" suggests it's version 1.00, likely the initial release of the game or update. That happens if you used a bad dump