About
More commonly known as WedNESday.
Save states are not backwards compatible.
Please click here to start playing!
Controls
Emulator
- +/F/R - Load ROM
- B - Board
- F - Fullscreen
- L - Load Save State from Memory
- Ctrl + L - Load Save State from File
- O - Overscan
- P - Pause
- R - Reset
- S - Save Save State to Memory
- Ctrl + S - Save Save State to File
Gamepad
- Up Arrow - Up
- Down Arrow - Down
- Left Arrow - Left
- Right Arrow - Right
- Space Bar - Select
- Enter - Start
- Z - B
- X - A
Mappers
Version History
v1.06.00 (08.04.2026)
- HTML: Each save state's file has been significantly reduced in size.
- HTML: Upon loading a save state, any previously pressed buttons are now unpressed by default.
- HTML: Upon loading a save state, there is no longer a 1 frame loss of VSync.
- Memory: Reading from $6000 - $7FFF when unmapped no longer crashes any games.
- Memory: Various optimisations have been made to improve performance.
- APU: Numerous games no longer suffer from repetitive sound.
- APU: Sound is now output at a sample rate of 48,000 Hz.
- Mapper: 001 (MMC1/SxROM) now correctly emulates consecutive-cycle writes.
- Mapper: 001 (MMC1/SxROM) now fully supports CHR-RAM banking.
- Mapper: 001 (MMC1/SxROM) now fully supports SUROM/SXROM.
- Mapper: 013 (CPROM) is now supported.
- Mapper: 038 is now supported.
- Mapper: 066 (GxROM) now correctly emulates bus conflicts.
- Mapper: 079 (NINA-003-006) is now supported.
- Mapper: 081 is now supported.
- Mapper: 097 is now supported.
- Mapper: 113 is now supported.
- Mapper: 140 is now supported.
- Mapper: 152 is now supported.
- Mapper: 190 is now supported.
v1.05.02 (26.02.2026)
- PPU: Various optimisations have been made to improve performance.
- APU: Sound is now output at the browser's standard sample rate.
- APU: Various optimisations have been made to improve performance.
v1.05.01 (26.12.2025)
- HTML: Firefox no longer hangs after loading a game.
- HTML: For users without a numpad, additional keys can now be used to load a game.
v1.05.00 (29.10.2025)
- HTML: Toggling fullscreen mode whilst paused no longer toggles pausing.
- HTML: The console's screen is now displayed correctly when the client area is resized whilst paused.
- HTML: Game progress can now be saved/loaded at any time via save states.
- CPU: Improved support for interrupt polling.
- PPU: Various optimisations have been made to improve performance.
- APU: Sound quality has been significantly improved.
v1.04.00 (15.06.2025)
- HTML: Toggling fullscreen mode no longer causes any sound issues.
- PPU: Colour emphasis is now supported.
- PPU: Various optimisations have been made to improve performance.
- Mapper: 004 (MMC3/TxROM) is now fully supported.
- Mapper: 004 (MMC6/HKROM) is now supported.
v1.03.00 (30.04.2025)
- Mapper: 009 (MMC2) is now supported.
- Mapper: 010 (MMC4) is now supported.
- Mapper: 066 (GxROM) is now supported.
- Mapper: 094 is now supported.
- Mapper: 180 is now supported.
v1.02.00 (23.04.2025)
- PPU: The first 8 pixels of all scanlines are now displayed correctly at all times.
- Mapper: 011 (Color Dreams) is now supported.
- Mapper: 073 (VRC3) is now supported.
- Mapper: 075 (VRC1) is now supported.
- Mapper: 078 is now supported.
- Mapper: 087 is now supported.
v1.01.00 (18.04.2025)
- HTML: After changing boards, all text on the left side of the screen now correctly disappears.
- HTML: Changing boards now puts the console into its power-up state rather than its reset one.
- HTML: Graphics and sound can now be individually enabled/disabled via the buttons listed above.
- HTML: Pausing while fullscreen and then returning to windowed mode now correctly resizes the console's screen.
- PPU: When changed by a mapper, mirroring now switches modes correctly.
- Mapper: 001 (MMC1/SxROM) is now fully supported.
v1.00.01 (08.04.2025)
- HTML: Changing browser tabs now correctly pauses/unpauses sound.
- HTML: Entering fullscreen no longer pauses sound for a short duration.
- HTML: Pausing now correctly pauses/unpauses sound.
v1.00.00 (20.03.2025)