Q: Do I need a PSN account to play these updated PKGs? A: No. A major advantage of backported, updated PKGs is that they run fully offline. No PSN login is required.
Q: Can I play co-op on the same console? A: Yes. All ACA NEOGEO Metal Slug PKGs and Metal Slug XX support 2-player local co-op as intended.
Q: Why does Metal Slug 2 (ACA) still have slowdown even in the "updated" PKG? A: That’s a feature, not a bug! The ACA series prides itself on arcade-perfect emulation. The original NeoGeo hardware had slowdown during heavy action. An “updated” PKG for MS2 usually keeps the slowdown to preserve authenticity. If you want a smoother experience, look for ACA NEOGEO METAL SLUG X (the refined version).
Q: Are there any “Ultimate” or “Modded” Metal Slug PKGs? A: Yes, the scene has released a few modded PKGs, such as Metal Slug 3 – Unlimited Credits or Metal Slug XX – All Characters Unlocked. These are less common but can be found by searching "metal slug ps4 pkg modded update". Be careful—modded PKGs may not be backported. metal slug ps4 pkg updated
Q: Can I install these on a non-jailbroken PS4? A: No. Official PS4 units require a valid digital license from the PlayStation Store. These PKGs are designed for debug/factory units (usually Testkits) or jailbroken retail units.
The updated PKG typically refers to the game with all patches applied (usually v1.02 or v1.03).
| Feature | v1.00 (Launch) | v1.02+ (Updated PKG) | |---------|----------------|------------------------| | Input lag | Noticeable (4–5 frames) | Reduced (~2–3 frames) | | Screen filters | Basic scanlines | Added CRT, sharp pixel, smoothing | | Button remapping | Limited | Full customization | | Trophy bugs | Some trophies not unlocking | Fixed progression | | Performance dips | Occasional in MS3/MS6 | Stable 60fps (except heavy explosions) | | Save states | No | Added (per game quick save/load) | Q: Do I need a PSN account to play these updated PKGs
⚠️ Even after updates, input lag is slightly higher than the PS2 or PS3 versions, but improved over launch.
Before the ACA series, SNK released a standalone Metal Slug 3 with online co-op. Updated PKGs for this version are rare, but they exist and include the co-op netcode patches.
For a typical Fake PKG (jailbroken PS4) or official PKG backup: ⚠️ Even after updates, input lag is slightly
CUSA06478 (Anthology EU) or CUSA06477 (US)
├── pkg/
│ ├── CUSA06478-00.pkg (base game)
│ └── CUSA06478-01.pkg (update v1.02)
├── sce_sys/ (param.sfo, icon0.png)
└── media/ (background music, theme)
Before we get into the specifics, let’s break down the terminology.
An updated Metal Slug PKG typically means:
The PS4 PKG of Metal Slug Anthology contains all 7 mainline entries:
| Game | Original Release | Notes | |------|----------------|-------| | Metal Slug 1 | 1996 (Neo Geo) | The original classic | | Metal Slug 2 | 1998 | Introduced prisoner rescues & transformations | | Metal Slug X | 1999 | Enhanced version of MS2 with rebalanced difficulty | | Metal Slug 3 | 2000 | Fan favorite — branching paths, zombies, yetis | | Metal Slug 4 | 2002 | New characters (Trevor, Nadia) | | Metal Slug 5 | 2003 | Slide mechanic, faster pacing | | Metal Slug 6 | 2006 | Weapon stock system, new slug vehicles |
Note: Metal Slug 7 (NDS) and XX are not included in the PS4 anthology.