One improvement, I think, is the new-style Japanese acrylic mini mj set I just added. Now every single tile is transparent, so you can watch your opponents' every move - but go careful how you read those difficult character tiles!!
The craze for playing with transparent mahjong tiles developed out of the Akagi manga series, in which the hero, Akagi has to play in a game using a set of tiles with 3 out of 4 tiles being transparent. If he loses he has to have so much blood drawn from his body... If he keeps on losing and he'll die of blood loss...
The mini mj set is really a novelty or party set, or a portable holiday set. The score sticks and dice are also mini-size. The dice are especially microscopic!!
Check out the Japanese Mini Mahjong Transparent Tile Set!
