Red Viper v1.3.2 is released. A Virtual Boy emulator for the Nintendo 3DS continuing mrdanielps's work on r3Ddragon, which is itself based on Reality Boy / Red Dragon. It uses a dynamic recompiler with busywait detection and a hardware-accelerated renderer to achieve high performance on the 3DS's limited hardware.

Red Viper Changelog:
This release brings Zero Racers to playable status on old 3DS. Dragon Hopper remains stuttery on old 3DS for now, but should be better on new 3DS, especially with 3D disabled.
Improved performance significantly in Zero Racers and to a lesser extent in Dragon Hopper
Run Zero Racers title animation at correct speed

Download: Red Viper v1.3.2
Source:Here