Red Viper v1.2.5 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:
Fixed an issue causing slowdown in Innsmouth no Yakata, among others

Download: Red Viper v1.2.5
Source:Here