Fun fact! The Nintendo DS audio chip has a distinctive buzz that's visible in all audio tips uploaded to YouTube, and you can even hear it on this page! It comes from.... a bug in the popular DeSMuMe emulator. Yes, it turns out that the people that designed the "2sf" format used for unofficial music rips simply used stripped down ROMs and code extracted from a version of DeSMuMe. Community tooling later allowed you to batch convert them to MP3, and the rest is history. Line rips recorded from the audio jack of the device don't have this distinctive buzz. Extra fun when some official soundtrack releases contain the buzz :)

There's some other fun facts about the DS (its 3D hardware is scan line based, not frame buffer based! Which means you can't do post processing on it without some hacky tricks... can you tell it was from the team that made the PPU, rather than a modern GPU or even an SGI-derived one?), but that one is my favorite.

Edit: minor correction, the N64 supported AA, which is another reason jagged polygons are less common.