| Metric | Base NSP (1.0.0) | Updated NSP (1.1.0 Exclusive) | | :--- | :--- | :--- | | | 22-30 FPS (Volatile) | 28-30 FPS (Solid) | | Handheld FPS | 18-30 FPS (Frequent Dips) | 26-30 FPS (Rare Dips) | | Load Time (Boot to Game) | 48 seconds | 32 seconds | | Texture Filtering | 2x Aniso | 4x Aniso | | Crashes (10 hour run) | 3 crashes | 0 crashes |
For users with a Custom Firmware (CFW) Switch running Atmosphere, installing the NSP update is straightforward:
However, a quiet but significant has rolled out for Batman: Arkham Asylum , and early data miners and players are reporting that this isn’t just a bug fix. There are exclusive optimizations tied specifically to this update file.
Batman: Arkham Knight – Nintendo Switch | Patch Notes 12/16/2025 batman arkham asylum switch nsp update exclusive
If you own a V1 unpatched Switch or a modded OLED, finding this update is a no-brainer. For everyone else, the official patch still makes Arkham Asylum the best-performing game in the trilogy on the go—just don't look at Arkham Knight .
Use tools like to safely dump your legally purchased eShop titles or physical cartridges directly on your console.
The Nintendo Switch version of brings an exclusive update to the table, tailored specifically for the Switch's portable and hybrid playstyles. This update includes: | Metric | Base NSP (1
Batman: Arkham Asylum Switch NSP Update Exclusive – Performance & Patch Breakdown
Technically, the update files contain dormant code for Batman Arkham Knight Amiibo (from the Arkham City line). With the 1.1.0 NSP, hackers discovered that scanning a Super Smash Bros. Joker Amiibo unlocks a "Phantom Thief" variant of the Armored suit. This is an easter egg not documented by Warner Bros.
Do not search for "NSP update" on public file hosts unless you own a modded Switch with a clean certificate. Nintendo has been aggressively banning consoles that play Arkham titles via unauthorized NSPs due to telemetry data in the new patch. For everyone else, the official patch still makes
Here's a quick look at the progression:
In response to the immense negative feedback, the developers quickly acted. A was released specifically for Arkham Asylum aimed at addressing its core issues. The patch focused on performance optimizations and general bug fixes .