In this episode of Commodore 64 retro games memories, I look at IK+ (International Karate Plus), the graphics data layout, how the player characters are drawn, and reverse engineer some of the animation code.

https://github.com/martinpiper/Debugg...

00:12 Introduction
00:40 Sprite grids and characters
02:40 Examine the sprite updates
04:18 Quite a lot of memory updates
04:50 Graphics data memory layout
05:33 Double buffered rendering
06:28 Three duplicate characters
07:49 Several frames to calculate
08:29 Game memories
09:30 Analyse animation code
28:52 Writing debug code