Geek With Social Skills | Flipping the original Apple II Karateka disk upside down - Broderbund 1984 by Jordan Mechner @geekwithsocialskills | Uploaded July 2021 | Updated October 2024, 3 hours ago.
In a viewer comment on my Apple IIc flat panel color display video I was asked about my original Karateka game disk: "Wait - that's an original Karateka disk, and you didn't try to boot the flip side?" I replied: "Yep, it's an original Karateka disk by Jordan Mechner. I never thought about trying to boot the flip side. I'll go try it now." I went ahead and tried it. I was really surprised at what happened, so I made this video showing the outcome.

Thanks to Jordan Mechner for programming this Easter egg into the original Karateka game disk for the Apple II computer. Karateka published by Broderbund in 1984.

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--- Video Index

0:00 - Intro: Karateka by Broderbund Software upside down
1:00 - Loading the original Karateka game floppy disk
1:32 - Checking out Karateka on the Apple IIc computer
2:13 - Ejecting the disk and flipping it over
2:31 - Rebooting the Apple IIc with the backside of Karateka
2:49 - Seeing what happens when you load the backside of the disk
3:50 - Discussing other flippy disks for the C64, Atari ST, etc
4:36 - Outro

--- Video Links

Apple IIc Flat Panel Display Color Composite LCD Conversion:
youtube.com/watch?v=WuB4MDxcBJM

Cult of Mac story from 2012 about the Easter Egg:
cultofmac.com/184477/this-is-the-greatest-easter-egg-of-all-time-only-on-the-apple-ii

Call A.P.P.L.E. blog post by Javier Rivera from 2015:
callapple.org/documentation/technical-notes/apple-c-flat-panel-lcd-conversion

Jav Master Apple IIc Flat panel display LCD conversion:
youtube.com/watch?v=S4zNsHyLqZY

--- Channel Links

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#Apple #Karateka #AppleIIc