My sincerest condolences on your "dead" Pokemon Gold version. Mine, too, died and I could no longer save. Since I don't have a DS I can't get HeartGold or SoulSilver (Gold/Silver being my favorites in the series), so I decided to take apart the game, remove the battery and replace it myself. It worked for about two days, but it was very touchy. I must have shaken the game too hard, because the battery stopped touching the circuit for a brief second... deleting all of my save data with it.
Anyways, to answer your question, Pokemon Trading Card Game is pretty good, as well as Kirby Tilt n' Tumble. Good call on Zelda: Link's Awakening... it's awesome. (I wish they would do more 2D Zelda...). Super Mario Land and Final Fantasy Legend II are great, too. Pokemon Puzzle Challenge is good for fans of Tetris Attack! for the SNES. Also, you should pick up Shantae! I hope you find some awesome games! Best of Luck.
Wii U is so awesome, even the ambulances are saying it.