NeptunJS | Download, System Requirements & Installation Guide

NeptunJS is an emulator that allows gamers to play classic console games on their computers. In this article, we will cover everything you need to know about NeptunJS, including its history, versions, system requirements, how to use it, and troubleshooting common issues. We will also cover topics such as ROMs, plugins, cheat codes, and popular games that can be played using NeptunJS.

1. What is NeptunJS?

NeptunJS is an emulator that allows gamers to play classic console games on their computers. It is a web-based emulator that runs in the browser, which means that users do not need to download any software to use it. NeptunJS supports a wide range of consoles, including the Nintendo Entertainment System (NES), Super Nintendo Entertainment System (SNES), Sega Genesis, and Game Boy Advance.

2. History of NeptunJS

NeptunJS was first released in 2016 and has since evolved to support more consoles and improve its performance. The emulator is constantly updated to fix bugs and add new features, making it a reliable option for gamers who want to play classic console games on their computers.

3. Versions of NeptunJS

Below are the versions of NeptunJS:

• NeptunJS 1.0
• NeptunJS 2.0
• NeptunJS 3.0
• NeptunJS 4.0
• NeptunJS 5.0

4. How to use NeptunJS

Using NeptunJS is easy. Simply go to the NeptunJS website, select the console you want to emulate, and load the ROM file. NeptunJS supports a wide range of ROM file formats, including .nes, .smc, .bin, and .gba. Once the ROM file is loaded, you can start playing the game using your keyboard or a gamepad.

5. System requirements

The system requirements for NeptunJS are minimal. All you need is a modern web browser and a computer that can run it. NeptunJS is compatible with Windows, Mac, and Linux operating systems.

6. NeptunJS download

NeptunJS is a web-based emulator, which means that you do not need to download any software to use it. Simply go to the NeptunJS website and start playing.

7. How to install NeptunJS

There is no need to install NeptunJS. Simply go to the NeptunJS website and start playing.

8. How to uninstall NeptunJS

Since NeptunJS is a web-based emulator, there is no need to uninstall it. Simply close the browser window to stop using it.

9. ROMs

NeptunJS supports a wide range of ROMs for various consoles, including the NES, SNES, Sega Genesis, and Game Boy Advance. Users can find ROMs online and load them into NeptunJS to start playing.

10. How to run a ROM on NeptunJS

To run a ROM on NeptunJS, simply go to the NeptunJS website, select the console you want to emulate, and load the ROM file. NeptunJS supports a wide range of ROM file formats, including .nes, .smc, .bin, and .gba.

11. How to configure NeptunJS

To configure NeptunJS for optimal performance, users can adjust the emulator’s settings, including video and audio settings, input settings, and save state settings. These settings can be accessed by clicking on the gear icon in the top right corner of the emulator window.

12. How to assign plugins to NeptunJS

To assign plugins to NeptunJS, users can click on the gear icon in the top right corner of the emulator window and select the “Plugins” tab. From there, users can select the plugins they want to use and configure them to their liking.

13. List with plugins

Below are plugins you can use for NeptunJS:

• Gamepad plugin
• Netplay plugin
• Save state plugin
• Video filter plugin
• Audio plugin

14. Input devices

To configure input devices in NeptunJS, users can click on the gear icon in the top right corner of the emulator window and select the “Input” tab. From there, users can configure their keyboard or gamepad to their liking.

15. How to use cheat codes

To use cheat codes in NeptunJS, users can click on the gear icon in the top right corner of the emulator window and select the “Cheats” tab. From there, users can enter cheat codes for the game they are playing.

16. List with cheat codes

Below are some cheat codes for NeptunJS:

• Infinite lives: UP, UP, DOWN, DOWN, LEFT, RIGHT, LEFT, RIGHT, B, A
• Unlock all levels: UP, DOWN, LEFT, RIGHT, A, B, START
• Invincibility: UP, UP, DOWN, DOWN, LEFT, RIGHT, LEFT, RIGHT, B, A

17. Popular games

Some of the most popular games that can be played using NeptunJS include Super Mario Bros., The Legend of Zelda, Sonic the Hedgehog, and Pokemon.

18. How to save in NeptunJS

To save settings in NeptunJS, users can click on the gear icon in the top right corner of the emulator window and select the “Save State” tab. From there, users can save their progress in the game they are playing.

19. Troubleshoot

If users encounter any issues while using NeptunJS, they can try clearing their browser cache, disabling any browser extensions, or using a different web browser. If the issue persists, users can contact NeptunJS support for further assistance.