Just took out my old Game Boy Advance SP and played Super Mario World Advance 2 (has Mario Bros on it as well). First Video Game I ever got. Needless to say the nostalgia is strong.
Also, if you somehow didn't know, GBs are indestructible. My SP has been dropped down multiple flights of stairs, dropped two stories, left in 10o+ heat for long periods, managed to get lemonade in it's screen and it's competently fine. I'm telling you man, these things can make great discount bullet vests.