m8rix_ debugger for NES Maker / Mesen

m8rix_ is a tool that will reveal a new world inside your NES Maker game.

See what’s happening behind the graphics. Inspect live variables, change values while the game is running, and understand how your game reacts.

• Inspect variables in real time while your game runs in Mesen.
• Change values instantly and see the effect without rebuilding your game.
• Track game state and follow what changes during gameplay.
• Investigate bugs by seeing what the game is actually doing internally.
• Experiment freely with values, conditions, and game logic.

A game can look right on screen while something underneath is wrong. A variable may contain an unexpected value, a flag may never change, or a timer may behave differently than you assumed.

m8rix_ gives you a direct view into that internal state.

Instead of guessing, you can watch values change as you play, search for the variables you care about, and test different values on the fly.

And debugging is only part of it.

Want to know what happens with 99 lives? Change it. Want to see which value controls an animation, timer, or game state? Watch it. Want to test an idea without recompiling? Try it.

m8rix_ is designed to make exploring your NES Maker game fast, visual, and immediate.

Built with Codex using OpenAI GPT-6.1 Sol.

Look inside. Change a value. See what happens.