Static code is hard to read because addresses are absolute. Dynamic analysis helps you understand when code runs.
Today, thousands of NDS games are abandonware—no longer sold, with source code locked in corporate vaults or lost to hard drive crashes. This is where the quest for an begins. But if you type that phrase into Google, you will be met with confusion, outdated forum posts, and a fundamental misconception. nds decompiler
It is important to note that you cannot simply click a button and get the original source code. The process requires significant manual effort. Static code is hard to read because addresses are absolute
If you have $1,500, IDA Pro with the Hex-Rays ARM decompiler produces significantly better C-like pseudocode than Ghidra for NDS Thumb code. Combined with the ndsldr plugin (community-made), you can load overlays dynamically. Several commercial NDS ports (e.g., to modern consoles) have been done this way legally under clean-room reverse engineering. This is where the quest for an begins
But as the decompiler reached the game's core engine, the progress bar stalled. The screen bled red. CRITICAL ERROR: OBFUSCATION DETECTED.
Use or NDT (Nintendo DS Toolkit) to extract graphics, sounds, text, and level scripts. Many NDS games store game logic in interpreted scripts (Lua, or custom bytecode), not compiled ARM. If you extract the script, you effectively "decompiled" the game's behavior without touching assembly.