"Why Does My N64 Only Show Some Games On My TV?"에 답변I had this problem as well with the same games not working! I made sure they were all immaculately clean and still no dice. BUT I FIGURED IT OUT! Basically, I noticed that it was mostly older games that weren’t working. I was hooking my n64 directly into my hdtv’s AV port. On a whim, I plugged an old dvd/vcr in to the AV port on the tv, and plugged my n64 into the dvd/vcr and PRESTO! GAMES WORKED! Not sure what the technical explaination for this is, but it has been foolproof! Good luck!