a small smart phone game

We are planning a small game for mobile devices (phone, tablet). It will look like Tetris at the first glance. The game starts as a sentence starts to fall from the top of the screen. The user will try to find the category that statement belongs to. User will choose the category using the up and down buttons, the names of the categories will be shown in a field at the bottom of the screen. There will be 10 items at this category. If the user choose the category, he will press the ok button. If the category is right, the sentence which is falling will disappear. If the category is wrong, there will be an error sound and the user tries another category till the sentence touches the bottom or touches the previous wrongly chosen sentence. When the sentence touches the bottom, the color of the sentence will be light blue (for example) and it will stay there till the end of the game. After choosing right or wrong category, another sentence will start to fall from the top again. The game will be over when these light blue sentences\' block touches the top of the screen. The falling speed of the sentences will go up by time. So it will be harder to find and click the right category after a while. scoring: -The user will get the score with the number of sentences that he matches the right category till the game ends. The amount of points will be about the duration in-between the appearence of the sentence and the choice of the category. The screen will be divided to 10 levels for the sentence to fall. The amount of points will be decreasing from top to bottom. 2 points at the top, 1,9 points one step down, 1,8... and1,0 at the bottom. The Score Window: The user/player will see the score window by clicking a button at the main window. The best 10 of the week, and the overall best 10 will be shown. The names and the scores. Language: The game will be in Turkish so the character set will always support this language. Sentences: the sentences and the categories that will be used it the game will be given to the developer. There will be 20 sentences for each category (totally 200 sentences for 10 categories) , and the game will display these sentences one by one randomly.