EddyFree

Anyone know the name of the tune used in the Sargon II Chess game or is it unique to that game?

If you are playing the game in an emulator such as Altirra, change memory location $B0AD to 1 using the "Cheater" or the Debugger(Altirra Debugger command being "eb $B0AD 1"). That should give you a key.

Just in case someone comes across this topic from a search, as another option to redefining the keyboard I did make a patch for Ultima 2 and Ultima 3 that should correct the arrow issue. You can find the patched ATRs here: https://forums.atariage.com/topic/308710-atari-8bit-game-patches/?do=findComment&comment=5173297

You should have mentioned this in your OP as it's important information considering your request. Very few use 16k Atari machines anymore. Luckily, I was able to spot some "free space" in the Defender Cartridge ROMs to add the functionality that you requested. Hopefully, you are able to load and enjoy this "hacked" Cartridge ROM. Let me know how it goes. DEFENDER Cartridge[EFPatched-Joybutton2-Uses-Smartbombs].rom

I just do this: GETKEY LDA $E425 PHA LDA $E424 PHA RTS JSR GETKEY Waits for keyboard input and returns ATASCII value of key pressed in accumulator. Works on XL and 800 OS.

Here's something I came up with. See if it does what you want. I've never tested it on a "real machine" though so any feedback as to whether it works on one or not would be appreciated. I decided to disable Joystick 2 input since there would be a conflict with its button being used. I made it where two player games share Joystick 1 instead. Let me know if/how it works for you. DEFENDER[EFPatched-Joybutton2-Uses-Smartbombs].xex

Emoji Wink emoji-wink.xex

Turtle turtle.xex

Elmo elmo.xex

Betty Boop betty-boop.xex

Scarab scarab.xex

Cow Face cow-face.xex

Flame Guy flameguy.xex

Eye Of Horus eye-horus.xex

Ms. Pacman ms-pacman.xex