Well since the jet lag thing, you can get the freshest fish and sushi if you like it. of your into tamagotchi you get get the lastest version you can probably find malice mizer's mana's clothing line there. many j-rock bands will be playing there, look up flights to japan you can find many hotels at a good price. fyi yen and american dollars are a way big difference (you probably know already)
yen to american dollar example: 62,000 yen is 500 american dollars
ttfn
I truly hope you have fun in japan im so jealous of you i really want to go there someday