合到20-不可思议数字合体小游戏，根本停不下来
Get to Twenty is a colorful arcade/puzzle game that starts at 1, looks easy until 10, gets fiendish at 15 and challenges you to get to 20. Anyone can learn it, but youll have to concentrate to make it all the way.
Think youve got it mastered?
crazy two-player race to see who can get to Twenty first.
Can you get to Twenty?