On June 19, Limited Run Games officially announced that Nintendo Switch 2's firmware version 20.1.5 has successfully addressed backward compatibility problems affecting games developed using the Carbon Engine technology. Popular titles such as Tomba: Special Edition, Shantae, and River City Girls Zero now function properly on updated Switch 2 consoles.

Similar to its predecessor, the Nintendo Switch 2 regularly receives system updates to enhance performance, resolve software bugs, and occasionally introduce new features. While most updates focus on general stability improvements, the version 20.1.5 update specifically targeted compatibility issues affecting certain retro titles. Users need an internet connection to download this mandatory update, which requires a brief system restart after installation.

While Nintendo didn't specify all changes in the update, Limited Run Games revealed significant improvements for Carbon Engine titles. This proprietary technology enables developers to port classic games to modern platforms while adding quality-of-life enhancements. Before the update, twelve Carbon Engine games experienced various issues on Switch 2, ranging from startup failures to graphical glitches and performance problems.

List of Fixed Carbon Engine Titles

The 20.1.5 update resolved compatibility issues for these notable games:

• Clock Tower: Rewind
• Jurassic Park Classic Games Collection
• Tomba: Special Edition
• River City Girls Zero
• A Boy and his Blob Collection
• Rocket Knight Adventures
• Shantae
• Bill & Ted's Excellent Retro Collection
• Xtreme Sports
• Trip World DX
• Felix the Cat
• Rendering Ranger R-2: Rewind

Limited Run Games also provided status updates regarding the Gex Trilogy, which continues to experience compatibility problems. A corrective patch was submitted to Nintendo but faces approval delays due to the Juneteenth holiday. The company expects the fix to deploy within days, during which the trilogy remains temporarily unavailable on the Switch 2 eShop.