Poorly planned
The idea -- video gaming meets integrals -- is fine, but it doesn't seem like you do anything with the concept. I like the new type of Materia spawning X's, but that was it. I might like it if you actually dealt with math. I might like it if it were actually a video game parody. As it stands, the text is extremely hard to read (this is unexcusable, given all the empty space you could've used), there's no animation, and the jokes fall flat. Is "Si" supposed to be a reference to something? Did I really just wait a few seconds for a character to return from a skate park? Was that supposed to be the joke -- that the ninja was at a skate park?
This series needs some major revision, both in terms of the plot and the style. But it's a good concept -- I hope you do make better use of it.