NINTV-DS v4.1 is released. NINTV-DS is an Intellivision console emulator running on the DS/DSi. The Intellivision is a home video game console released by Mattel Electronics in 1979.

NINTV-DS Features:
All known games run at full speed on a DSi or above.
Many games run very close to full speed on the older DS-LITE and DS-PHAT hardware but you can play with config settings to get the most out of these games.
Custom Overlay Support. See the 'extras' folder for details.
Manual/Instruction Support. See the 'extras' folder for an example.
Save Sate support (3 save slots per game).
High Scores for up to 10 scores pre game with various sorting options.
Cheat / Hack support using NINTV-DS.cht (see 'extras' folder and place in /data directory)
Tons of button / controller mapping options. Dual-Controller support (run and shoot at the same time).
JLP support for accelerated functions, extra RAM and flash memory. When loading a game, use the X button to load and force JLP support ON if not auto-detected.
ECS support for ECS games including sound-enchanced games like Space Patrol (use ECS mini-Keyboard Overlay)

NINTV-DS v4.0 changelog:
Added the ability to map any DS key to the DISC UP and DISC DOWN which makes platform games like Rick Dynamite much more enjoyable.
Force load of JLP/ECS/IVoice will now save out to configuration for the game so you don't have to do that more than once.
Games of 16K or less without a specific .cfg or database entry will load at 5000h which is very likely where it wants to load.
Numerous homebrews and hacks added to the internal database.

Download: NINTV-DS v4.1
Source: Here