how to code this with high FPS

hi,
can someone help me to code something like this? I try it but it always crash becouse big number or dots…

http://www.youtube.com/watch?v=OP7_MwCkW40

It would be better if you would share what you’ve already got and then people could suggest changes to make. At the moment, you’re asking someone to do something from scratch which is always a harder task.