Dezaemon 3D is a comprehensive shoot-’em-up creation suite released for the Nintendo 64 in 1998. Developed by Athena exclusively for Japan, it provides a full toolset for players to design, build, and play their own vertical scrolling 3D shooters. Rather than just playing a pre-made campaign, users can create custom 3D models, compose soundtracks, design complex bullet patterns, and map out entire stage layouts.
How to Play
Gameplay is split between the creation tools and the shooters themselves. In the browser emulator, the Nintendo 64 controls map to your keyboard. Use the arrow keys for the D-pad and the I, J, K, L keys for the C-buttons (or as mapped in your settings) to navigate the menus. Press the Enter key for Start, Z for the A button to confirm selections, and X for the B button to cancel. While playing a shooter, move your ship with the arrow keys, fire your primary weapon with Z, and drop bombs with X.
Tips
- Menu navigation: The interface is entirely in Japanese. If you do not read the language, rely on the visual icons or refer to an online menu translation guide to find your way around the creation suite.
- Try the samples: Before trying to build your own game from scratch, play through the built-in sample games to understand how the engine handles hitboxes, 3D models, and enemy waves.
- Use save states: Designing models and stages is a long process. Remember to use the emulator’s save state feature frequently so you do not lose your hard work.

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