does Nintendo 3DS game work on regular nintendo ds?

Answer 1

no, you can play nintendo 3ds games on a regular ds but you can play regular ds games on nintendo 3ds

check http://techgadgetsgame.wordpress.com/2011/03/21/the-nintendo-3ds-fans-playing-feeling/ for more details

Answer 2

A 3DS cartridge doesn't fit into a DS so no.

Answer 3

If a regular DS can play 3D games then Nintendo won't even bother to release a 3DS. Right?

Answer 4

No, the 3DS is a new handheld console, so the 3DS carts are a new format. This means that even the normal DS carts are only playable because the 3DS is backwards compatible.

Think PS1, with CD disks to PS2 with DVD disks.