The Tremor Pak, where to begin? It rumbles harder than the SEGA Jump Pack. Most SEGA brand Jump Packs and/or Puru-Puru Packs that I have owned stopped working after six months or so of everyday play, whereas one Tremor Pak in my main DC controller lasted from Sept 15th, 1999 (when I bought it and my first Dreamcast) to sometime in the summer of 2001, and I put a heck of a lot of time into my Dreamcast in those days. I would literally play Crazy Taxi (since its release on 02/01/00) for at least 2 hours a day, all on the same Tremor Pak. Oddly enough, my first Tremor Pak died when the day before Crazy Taxi 2 hit the stores. So when I picked up my copy of Crazy Taxi 2, I then bought six more Tremor Paks, at 5 bucks a pop, figuring that they'd be gone once the GameCube and XBOX take what is left of Dreamcast shelf space. I don't play my Dreamcast as much now. But I do still play it. Also, I still have 5 Tremor Paks still in their boxes, still in shrink-wrap.