HalfNES v0.020 is released. HalfNES is an open-source emulator for the Nintendo Entertainment System, written in Java. Currently, it only runs as a standalone Java SE application.

Current Features:
- Supports Mapper 0,1,2,3 games
- SRAM saving works now
- Accurate sound core
- Cross-platform portable

HalfNES v0.020 Changelog:

Fixed the missing sprites bug and games with a status bar on the bottom. Super Mario 3, Tiny Toon Adventures, Marble Madness, Kirby's Adventure and Battletoads are playable. (Tiny Toons doesn't quite put the status bar in the right place, but it's not too far off.) Fixed 4-screen mirroring (Gauntlet) Also added mapper 34 support (Deadly Towers) Dragon Warrior 3 + 4 still won't start, Zelda II and Crystalis still have problems.

Download: HalfNES v0.020
Source: Here