Please just look at the dateHeh. I played Cave Story for the first time not too long ago and it's amazing. Finding an exploit for it makes it even better.
This is a dead thread. Youre not going to get a buffer overflow from editing unsigned data from a text file anyway. And if it did crash, that doesn't mean an exploit is possible, it means it kept the overflow from happening which was intended.I tried to do the same thing but I didn't seem to get a crash yet. If you can, can you send me your save file of this bug so I can debug it?