Gold Medalist is another one of those Olympics-themed games that requires extensive button mashing.
The following text starts at address 0x00070 in the audio CPU. The same message can be found in Time Soldiers:
Sound Board No.62FC01 Music Macro Lungeag & Effect Macro Lungeag & Adpcm Voice Out Control Program ALPHA DENSHI CO., LTD. By Satoshi.Hagitani
Various flags for an unused country, South Korea! While the 8 other countries' flags are always grouped together in the object graphics ROM, South Korea's seem almost randomly placed, indicating that it was added after the 8 countries were already decided. Unfortunately, there's no code in the game ROM that actually uses these graphics.