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This write-up is for educational and archival purposes only. You must dump your own legitimate copy of Mario & Luigi: Partners in Time to build this CIA. No copyrighted ROM is distributed here. Extra quality patches are fan-made and may have minor graphical glitches in widescreen mode (rare UI elements cut off at edges).
The term "Extra Quality" in the search query suggests a desire for a high-fidelity file. However, downloading files labeled as such from third-party repositories carries inherent risks:
Using nds-bootstrap, these CIAs enable bi-linear filtering. This smooths out the pixelated edges of Mario’s mustache and the Shroob aliens, making them look like hand-drawn HD sprites rather than jagged pixels. mario and luigi partners in time 3ds cia extra quality
This method runs the original DS ROM. It offers the best compatibility, allows you to use cheat codes, and lets you play the game in its original resolution without blur.
Setting up the Game:
Optimizing "Extra Quality" (Settings):
The original DS had two square screens. The 3DS has a wider top screen. Without a patch, the game is stretched or pillarboxed. An "Extra Quality" CIA includes a widescreen cheat code (via TWiLight Light) that forces the game to render at 400x240 resolution, removing the black bars without stretching sprites.
After spending 20 hours with the Extra Quality CIA on a New 3DS XL, here is the verdict:
The Good:
The Neutral:
The Bad: