If I recall correctly Igglyboo said something along the lines of the highest level CPU being level 9 but the CPU graphic/icon mess up for values A through F (although still acting as a level 9).
From my experience with the code it does not crash at the following values: 1, 2, 3, 5, 6, 7, 8, 9, F. Sadly, I don't remember if 0, A, B, C, D, or E crash, although if 0 crashed it would be understandable.
Maybe you should look for other threads with Igglyboo's response, assuming the thread was not deleted somehow, if interested.
-matein10
EDIT:
This code has always fascinated me so I looked into it.
Ignore this if you don't care how the (I think) the code was made.
[lame attempt to contribute to the community for new hackers such as myself].
"Gecko Codetype Documentation" was my source of information.
MY NOTES:
Default CPU Level Modifier[Igglyboo]
C2693A70 <-C2 codetype = "Insert ASM" codetype, and ASM = assembly code. 00000002 <- is the number of lines of ASM code to insert. I thought this would have been a D2 codetype because of the next line being a pointer.
3880000X <- Repoints data to address 909E01D4.
60000000 00000000 is a nop (I think) nop = no operation. It can end C2/D2 codetypes.
[/lame attempt to contribute to the community for new hackers such as myself]
Uhhh... how do I make spoiler tags or code boxes/tags?
I am sorry if this does not belong here.
Please notify me if so, and I will try to refrain from posting such comments.
-matein10