Great game-idea and it's really fun, especially when multiple human players are involved. But I'm also happy about the integrated CPU-player, because you don't always have human-friends around, to play with. So, good work, definitely a fun game! I love "Microprose Soccer" by the way, Arcade-style football games on the C64, are really cool.
Please check out the new version, '4GOAL CHALLENGE', which is now available here: https://emmonks.itch.io/4goal-challenge. Hope you have a great time playing it!