 I haven&#39;t looked at the 2Mb rom yet, but I think the Turtles leftovers are put where there were meant to be paddings or separators - FFs placed somewhere in the ROM. When the Crackers EEPROM was made, it replaced the Turtles ROM, but not everywhere. Probably for speed reasons, the &#39;flasher&#39; skips the paddings. That&#39;s my theory XD 