Company Koji Sato created these great apps:
Pon's English Word -Brain training puzzle, Pon's Mental Calc - Let's brain training!, Puzzle&Operation, シューティングde英単語[中学英語編], シューティングde英単語[高校英語編], Puzzle&English, Puzzle&Number&Operator, Puzzzeni -Coin Exchange Puzzle, PuzzMoney, Pow2 -Make 2048 Puzzle, Puzzle&Math -Brain Training, Puzzle&Cat, Puzzle&Math2 Brain Training, Zenichin, Number Tic-Tac-Toe IQ Puzzle, Shoot Coin Yen Exchange Puzzle, Nazoritas Addictive Puzzle, Soroekes Addictive Puzzle, Puzzzeni easy - Yen Exchanger, Ninobeki 2048 Block Puzzle, Puzzle&Sword Dungeon RPG PZL, 1or3, and others..
