The original eShop release (Title ID: 0100CA400E6E8000) shipped as v0 (1.0.0). Standard updates followed:
However, scene groups recently repacked a “v1.3.0 Exclusive” NSP with notes suggesting:
“Includes uncapped framerate in handheld mode + region-free ROM switching (JP/EU/US) for Contra & Super Contra.” contra anniversary collection switch nsp update exclusive
Neither feature was mentioned in any official Konami patch log.
If you have a legitimate copy of the game, go to System Settings > Data Management > Software. Look for Contra Anniversary Collection. The original eShop release (Title ID: 0100CA400E6E8000 )
Note: As of this writing, Konami has not released a physical "Ultimate Edition" cartridge containing v1.3.0 on the cart itself. The only way to experience the "Exclusive Update" is via digital download (eShop) or a dumped/updated NSP file.
Before diving into the update and NSP specifics, let's establish the baseline. The Contra Anniversary Collection is a compilation released by Konami across PS4, Xbox One, PC, and Nintendo Switch. It includes: However, scene groups recently repacked a “v1
Unlike the Castlevania or Arcade Classic collections, this one focused heavily on preserving the original difficulty, scanlines, and regional differences (e.g., the robotic "Probotector" versions).
The Switch's detachable Joy-Cons allow for instant local co-op without a second controller. The recent update improved the latency for wireless Joy-Con pairing during Contra III’s multiplayer sessions—a feature not replicable on other consoles without extra hardware.