The ability to run the emulator in fullscreen has been added! Simply double-click the game screen to enter fullscreen mode, and press the Escape key to exit.
A single-slot save state manager has been implemented!
After loading up a game, you can hit the "Save State" button at any time and the emulator will take a snapshot of the game at that moment. You can then jump back to that moment at any point by pressing "Load State" at the bottom of your screen.
Each game only gets one save slot, so anytime you save your state it overwrites your previous save. Save states are stored in memory, so next time you boot up your browser, your save game will be waiting for you.
The Audio Processing Unit (APU) has been implemented, and a volume slider introduced. Simply load up your favorite game and listen to those sweet 8-bit sounds flowing out your speakers.
Fixed a bug that prevented some MMC3 games from being loaded (like Batman Returns and Bad Dudes).
Fixed a bug in last update that broke rendering on Firefox. Fixed bug where hitting "Restore Default" for input controls wouldn't work on your first visit to the page.
Games should now run smoother at higher resolutions (scale) and on weaker hardware. Castlevania 2, in particular, runs like butter at "Scale: x5" compared to the choppy mess it was previously.
Various bug fixes.
MMC1 games are now supported!
This includes games like The Legend of Zelda, Metroid, and MegaMan 1 & 2.
MMC3 games are now supported!
This includes games like Super Mario Bros 2 & 3, and every other MegaMan.
Also, various bug fixes are included in this update.
Added a reset button that performs a soft reset of whatever game is being played when pressed.
Through a number of recent bug fixes, one of the most difficult games to emulate is now fully functional. You can play Super Mario Bros. from beginning to end, glitch-free.
When remapping input keys, you can now press the "Escape" key to cancel the remap.
The accuracy of the CPU's cycles has been improved, fixing numerous misc. timing-related bugs such as the parallax scrolling in Excitebike as well as visual glitches when scrolling between screens in The Legend of Zelda.
UNROM games are now fully supported. This includes games like Castlevania, Contra, and Metal Gear.
MMC1 games are still only partially supported, but UNROM was easy to implement so I just went ahead and did it, mmk?
A list of NES games and their associated mappers can be found here.
Currently in the process of building out MMC1 cartridge components. Some games are working, others are buggy, and some are completely broken. The Legend of Zelda is now 100% playable, with minor graphical glitches at the top of the screen that does not impact gameplay.
MMC1 games that utilize battery backed RAM (cartridge save games), such as The Legend of Zelda, are now stored when you exit the game or close the window. This means when you load up that game next, it will load your save data the same way a NES would if you popped the same cartridge back into it.
All controls can be reconfigured at the bottom of the page by simply clicking on what button you wish to change.
You can adjust the screen size by using the "scale:" dropdown at the top right of the screen. You can adjust anyway between the native 256x240 pixel resolution to 5x that. But beware! The bigger the screen, the slower the game will potentially run, as more pixel need to be updated per frame.
You now drag and drop a .nes file anyway on the window to load it into the emulator.