A/N: This is based loosely from some old racing games I used to play - your performance on a particular track is saved, and as a result you can later race against yourself (literally, and I think it was called a ghost). I took the idea and put it to Izzy's simulator, except it's the peak performance with simulated AI that everyone can fight against.
Izzy had been coming down to the SIM room with Tentomon to do a couple practice battles, but quickly realized from the sounds that someone else was already there. A quick check of his Digigear told him it was Tai and Agumon, but he decided to go in regardless and maybe see if they were interested in doing some team strategy rounds.
He and Tentomon arrived just in time to see Tai hurl his shoe at the monitor.
"Tai!" Izzy shouted in horror. "Violence at the machine won't solve anything!"
"No," Tai growled, clenching his fists and glaring murderously at the screen. "Violence in the machine does."
Izzy glanced at it. The first thing he saw was an image that showed Tai as he was being killed by... a copy himself, wearing a different set of clothing but complete with the blue sports band and a large sword.
Tentomon spoke for him as they both gazed at the statistics. "You're having trouble beating your Ghost?"
Tai just grumbled, not even bothering to retrieve his shoe. "This is stupid. I've been here all day and I still can't beat my own ass."
Izzy sat for a moment, pondering what the best option was, before offering them up to the frustrated boy before him. "Well, you can either take a break and try again tomorrow, you can do some team battle practice with Tentomon and me, or you can keep trying."
He barely had to wait for a reply.
"Third choice. Hand me my shoe, will you?"
"You're persistent, that's for sure."