Atari 5200DS vs z26

Atari 5200DS is a free emulator for Atari 5200 games on Nintendo DS-family systems, including DS, DSi, DSi XL, and DSi LL. Its stated coverage includes the original 69 commercial releases and a couple hundred homebrews, hacks, and prototypes. Bankswitching cartridges up to 512K are supported, including Bounty Bob Strikes Back. Players can mark games as liked or loved, and the emulator saves up to 10 high scores per game to the SD card. Some controls are adjusted for particular games: Frogger and Q-Bert are patched for button movement, while Robotron can use ABXY to shoot and the d-pad to move. The emulator requires NTSC-compatible ROMs in a52/bin format and recommends the original 4-port 5200.rom BIOS for full compatibility. A built-in replacement BIOS works for some games with limited compatibility. The README says games run at full speed on DSi or newer systems, though complex conversions may lag on DS Lite or Phat. Quest for Quinta Roo will not start because of a known key debounce issue. Version 3.9 was released April 8, 2026.

z26 is a free, open-source Atari 2600 emulator for Linux, macOS, and Windows. The maker lists version 4.07 as the current SDL2 and OpenGL release for those systems, with Windows and Macintosh executables plus source code. A separate DOS release is listed as version 1.58. Input support covers PC and USB joysticks, gamepads, mouse, and keyboard. A mouse or PC trackball can operate trackball and paddle games; mouse input is also documented for light-gun games, while keyboard input supports driving-controller games. z26 handles several cartridge bank-switching schemes, including standard 8K and 16K, Atari Super-Chip, CBS Ram Plus, and Pitfall II. Digital sound processing has low and high settings. Developer tools include trace mode, scanline counting, and controls for disabling individual graphics objects. The project is licensed under GNU General Public License Version 2. Its listed plan costs nothing, and the license states the program comes without warranty to the extent permitted by law.