DS randomly shuts down by itself

[alicefred]

For some reason my Nintendo DS behaving strangely. All the games are working pretty fine except New Super Mario Bros. This game boots up, but after about a minute of playing my DS shuts down by itself. I cleaned up the disc and tried several times, but still the same result. I have beaten the game in the past and decided to play it again. This game was fine, but just started doing this recently. Has anyone else experienced the same problem? Need your help to fix this.

Thanks in advance.