From Hard Drop - Tetris Wiki

Kids Tetris
Developer(s)	Hasbro Interactive
Publisher(s)	Hasbro Interactive
Release Date(s)	November 1999
Platform(s)	Windows OS
Gameplay Info
Next pieces	1
Playfield dimensions
Hold piece	No
Hard drop
Rotation system

World record performance: http://www.youtube.com/watch?v=Fk61NgvNbts

Complete review: http://www.answers.com/topic/kids-tetris