Help needed with closing games

HI everybody
I am new too all this, I have downloaded games for my kids, they all work fine, but the kids have noticed they can't exit the game,
without having to turn the nintendo off, to play another game.If anybody has any answers, it would be greatly appreciated.Thanx Annie :)

You have to turn soft reset on, this allows you to go back to the flashcarts menu without turning the system off.Soft reset varies from cart to cart, so let me know which cart your kids have and I can tell you how to enable soft reset on their carts.

Depense on what card you are using ?L+R+A+B+X+Y should be soft reset , if you are using R4, to enable it push the R button at back of ds and the bottom screen top right (R) should be green not red

Not always, on the AK2i its L+R+A+B+DOWN