 I did one game of creation alphabet. It's only for kids to learn ABCD, alphabets. This is my hack. Hack it's an ABCD. This is the alphabet. Actually, I started. If the kid wants to start with alphabet A, it clicks to, it finds the A and then it clicks the A. It will burst and it will show some other images. Like that, it's in order. A to Z, if next should be B. If kid clicks to next other one, it will not burst. It will be in alphabetic order. In these things, I use the sprite and temp sprite for this. And then one more like bitmap and canvas methods, I use the things to draw onto the user interface. This is like up to A to A, next is B. It will go to B and then C. It is in order, up to D, up to Z. If I click other than that, it will not, it will give other sounds. It's only for kid game to learn ABCD. So, how quickly can you modify to like learn multiplication tables and numbers and anything? Actually, last week only, I got an idea about this. I started working it out on that day on itself. Almost, today, yesterday, night only, I almost finished everything. All the things will be like positions and all, will give the positions and all. And then I took the random method for moving the things, everything. And then bitmap by using onto the user interface. Right now, you are providing data to the bitmap, right? To the canvas A to Z. How quickly can you change that? By using the sprite method, I use the everything, all the images, everything will be drawn onto the user interface. By using the sprite method. And then to change the things like all the colors will be, by using the temp sprite. Like that. And the music, all the background music. Where do you get the sounds from? I don't know.