Red Viper v0.9.5 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 v0.9.5 Changelog:
Control changes
New "Custom" control scheme (#67)
In the Custom control scheme, any 3DS button can be mapped to any VB button
Toggle and Turbo modes are available for each button
The previous control menu is still available as "Preset" for its ease of use
Added remapping option to 3DS D-Pad in Preset mode (#65)
Virtual buttons on the touchscreen can now be set to the face buttons by default
"Switch" button can now be turned off
Other settings changes
Configurations can now be game-specific, including controls, graphics, etc
Moved rv_config.ini to a more standard location (sdmc:/config/red-viper)
The red-viper directory with savestates and per-game configs can be moved by manually editing rv_config.ini
Added VBLink for homebrew developers, accessible by pressing Y on the main menu (will be supported in future versions of VUEngine Studio)
Other changes
Improved stability for capture cards
Fixed occasional bug where the emulator would crash on startup

Download: Red Viper v0.9.5
Source:Here