Is there a tweak that allows me to see code being processed by my phone?

[iMore Question]

Is there a tweak that allows me to see code being processed by my phone? Like if i press a button in a game it tells me what code the button ran? I saw someone using one, it was like a bunch of scrolling text on the corner of the screen. My goal is to see what happens behind the scenes when i press a button on this one game that i have so i can find the right variable and change it. Also, my device IS jailbroken.
Thanks in advance for any help!

 

[Just_Me_D]

I'm not aware of any such tweak or app, but hopefully, someone who does will reply soon....