Similar to ゴースト暗算
魔方陣
Magic square
ままこ立て
虫食い算
モン太君のいち・に・さんすう
流水算
和差算
割る2
Division by two
廣田虎之助
田籠松三郎
鈴木筆太郎
暗算
Mental calculation
72の法則
Rule of 72
携帯型ゲーム
Handheld game console
電子ゲーム
Handheld electronic game
Gamate
Gamate
GP2X
GP2X
GP2X Wiz
GP2X Wiz
GP32
GP32
GPD Win
GPD WinGPD Win 2
GPD Win 2GPD Win 3
GPD Win 3GPD Win 4
GPD Win 4GPD Win Max
GPD Win MaxGPD Win Mini
GPD Win MiniGPD XD
GPD XD
The Jungle
Jungle (console)Lenovo Legion Go
Lenovo Legion GoMSI Claw A1M
MSI Claw A1M