Game Boy · Platform
JP
No ROM
Upload one manually. The file stays in this tab and is not sent to a server.
EmulatorJS (open source, GitHub) · Touch pad on phones. A Bluetooth gamepad is better for fighters and karts.
Controls
On a phone, use the on-screen pad. A Bluetooth gamepad works too.
JP is Graham Coulby (IonicLimb)'s Game Boy homebrew from 2021. Run and jump to the end of the stage. This ROM is hosted under MIT.
Walkthrough
JP is a redistributable open-source Game Boy homebrew. The ROM loads when you open the page. Run and jump to the end of the stage.
Play

The ROM loads from this site. D-pad, A, and B.
Goal

Run and jump to the end of the stage.
License

MIT. Source: https://github.com/gcoulby/JP. Commercial ROMs are not hosted.
FAQ
Is JP free to play here?
Yes. The author released it under MIT, and this page hosts that ROM.
Who made it?
Graham Coulby (IonicLimb), 2021. Source: https://github.com/gcoulby/JP
Are there cheat codes?
No published cheat pack. Save-states are in the emulator menu.
Can I play it on a phone?
Yes. The on-screen pad maps to the D-pad, A, and B. Landscape is easier.
Do you host commercial ROMs?
No. This page is an open-source homebrew. Classic commercial games stay on the file picker.
Emulator cores live on S3. A game starts from a hosted ROM when that file exists, or from a local file you pick. Local files are not uploaded.