please do not take this as a complaint, but the latest v3.0 build of International Karate+ in the International Karate Duology.exe has sound issues that were not present under v2.6
The music is working during the opening menu but when a game is started the sound effects only work intermittently (e.g. opening "gong" sound when a match starts and most of the player characters movement sound effects are missing).
If the music is turned off + on again the in game the sound effects are fine. I am using the default Primary Sound Driver, and have noticed that the Software Sound Driver does not seem to have these problems but takes a noticeable hit on performance.
There are also some flickering graphics problems on the player sprite that appear when the player character is floored.
All the best.