Changing the size of memory or changing the ROM version forces a reset of the PET.
The emulator has an IEEE-488 device at address 8. It can be used load and save (.prg) files.
Some programs don't run on ROM1 and some require more memory than the default 8K.
The second expansion to Temple of Apshai, Curse of Ra, is set in ancient Egypt and has higher difficulty than the previous two parts. It also consists of four dungeon levels, with 179 rooms total. Like Upper Reaches to Apshai, the level design and room descriptions were created by Tim Bird, Mark Madrid and Andrew Martin.
lvl 1-4 Temple of Apshai
lvl 5-8 Upper Reaches of Apshai
lvl 9-12 Curse of RaLevels 9-12 = Curse of Ra