JGJ 317 yell insults at pikachu to gain his/her affection
(Nintendo 64)
ディディーコングレーシング (ニンテンドー64)
Game cartridge
¥100
Found at Surugaya in Oyama, Tochigi 駿河屋小山店で
Pikachu Genki de Chu (Nintendo 64)
ピカチュウげんきでちゅう (ニンテンドー64)
something like "Pikachu: Chu Vigorously" (with "chu" being japanese onomatopoeia for a rodent call and a pun on a very young cue kid pronouncing a word) and released elsewhere as "Hey You Pikachu!"
Game cartridge with Voice Recognition Unit
¥400
Found at Surugaya in Konosu, Saitama 駿河屋鴻巣店で
Nintendo 64 console
¥100
Found at Hard-Off in Tsukuba, Ibaraki ハードオフつくば店で
Hori redesigned compact controller
¥810
Found at Book Off in Tatebayashi, Gunma ブックオフ館林店で
Nintendo 64 official memory pak
¥100
Found at Hard-Off in Tsukuba, Ibaraki ハードオフつくば店で
Nintendo 64 RAM expansion
¥1500
Found at Hard-Off in Ageo, Saitama ハードオフ上尾店で
Mitsubishi Viseo monitor
¥1980
Found at Hard-Off in Soka, Saitama ハードオフ草加店で