Question 1

Where do ROMs come from?

Accepted Answer

You bring your own, or browse Internet Archive collections where wired. The picker accepts .nes, .md / .bin / .gen / .smd, .gg, .32x, .sfc / .smc, .gb / .gbc, .ngp / .ngc, arcade .zip, Nintendo 64 .z64 / .n64 / .v64, and PlayStation disc images (.chd / .pbp / .iso). N64 offers direct play plus a download fallback for larger files. PS1 browse uses CHD disc images. Neo Geo auto-fetches neogeo.zip BIOS; PS1 auto-fetches a US BIOS. No ROMs are bundled with the page itself.

Question 2

Is bringing my own ROM legal?

Accepted Answer

It depends on your jurisdiction and how you obtained the ROM. The general consensus is that backups of cartridges you own are fine for personal use; downloading copyrighted ROMs from the internet typically isn't. Public-domain games (homebrew, demos, abandonware) are unambiguously legal.

Question 3

Do save states work?

Accepted Answer

Yes — quick-save (F5) and quick-load (F9) on desktop, or via the on-screen menu on mobile. They stay saved in this browser between visits.

Question 4

Does my gamepad work?

Accepted Answer

Most USB and Bluetooth controllers work — Xbox, PlayStation, and 8BitDo pads are tested. A gamepad is especially helpful for N64 and PS1. The PS5 hidden browser can move around the page with the D-pad, but it cannot drive in-game controls.

Question 5

Can I play on a TV, Xbox, or PlayStation browser?

Accepted Answer

On most laptops and phones, yes. School Chromebooks and TV browsers vary — some run everything, some struggle with bigger discs, and the PS5 hidden browser cannot run these emulators at all. Where it works, use the on-screen game list; there may be no way to pick a file from disk on a TV. Preview the lean-back layout on desktop with ?tv=1.

Question 6

Why does Neo Geo say romsets is missing files?

Accepted Answer

Neo Geo needs matching arcade zips from the built-in collection. Random ROM-site dumps often fail.

Question 7

What do I need for PlayStation / PS1?

Accepted Answer

A US BIOS auto-loads once. Browse the disc collection, then Play in browser or Download instead and load the saved file. PS1 discs are large, so direct play may time out on slow connections. You can also load a local .chd / .pbp / .iso.

Question 8

What emulator cores are used?

Accepted Answer

The shell is EmulatorJS, which embeds RetroArch cores compiled to WebAssembly. Each console runs the standard core: FCEUmm for NES, genesis_plus_gx for Sega Genesis / Mega Drive, Game Gear, and Sega CD, picodrive for Sega 32X, snes9x for SNES, gambatte for Game Boy / Game Boy Color, mGBA for Game Boy Advance, FinalBurn Neo (arcade) for Neo Geo, mupen64plus_next for N64, and pcsx_rearmed for PlayStation.

Retro Game Emulator NES · Sega · Game Gear · 32X · SNES · Game Boy · Neo Geo · N64 · PS1

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