MissingNo.

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MissingNo. is a Game Boy emulator with an integrated debugger. Play Game Boy games with keyboard or controller support, fullscreen mode, and save RAM persistence.

MissingNo. screenshot 1

Cost / License

Free
Open Source (MIT)

Application type

Game Emulator

Origin

Australia

Platforms

Linux
Flathub
Flatpak

MissingNo. screenshot 1

MissingNo. screenshot 2

+1

MissingNo. screenshot 3

MissingNo. alternatives

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Features

Properties

Privacy focused

Features

Ad-free
Works Offline
Controller Support
Dark Mode
No registration required
No Tracking
Support for Keyboard Shortcuts
Embedded debugger
Game Boy Emulation
Fullscreen support

Tags

MissingNo. News & Activities

Highlights All activities

Recent activities

ZackGame added MissingNo. as alternative to Zeta Emulator
10 days ago
Darlene Sonalder added MissingNo. as alternative to Linkboy
5 months ago
Korwin added MissingNo. as alternative to CLK
8 months ago
Paul added MissingNo. as alternative to RetroArch, Lemuroid, VisualBoyAdvance, Delta Emulator and 16 more
8 months ago
Paul added MissingNo.
8 months ago

MissingNo. information

Developed by
Andrew O'Neil
Licensing
Open Source (MIT) and Free product.
Written in
Rust
Alternatives
21 alternatives listed
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Supported Languages
- English

AlternativeTo Categories

Gaming Software, System & Hardware

GitHub repository

8 Stars
0 Forks
0 Open Issues
Updated Jul 30, 2026

Popular alternatives

MissingNo. was added to AlternativeTo by Paul on Feb 12, 2026 and this page was last updated Feb 12, 2026.

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Official Links

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What is MissingNo.?

MissingNo. is a Game Boy emulator with an integrated debugger. Play Game Boy games with keyboard or controller support, fullscreen mode, and save RAM persistence.

The built-in debugger provides code disassembly with breakpoints, CPU state inspection, VRAM visualization, audio channel inspection, and an interrupt viewer.