They don't count towards 100% completion; they are merely an optional extra, but you do need to get 70 Gold Medals to unlock a Trophy. Can You Replay Missions to Get Gold Medals in GTA 5?

GTA 5 cheats and codes spawn weapons, guns and cars, add health and control wanted levels on PlayStation, Xbox and PC. And that's just a quick list. With the cheats I have here you can take ...

The only symbol that has been solved is the UFO. After getting 100% completion in GTA 5, players can see a UFO at the top of Mount Chiliad. Regarding the jetpack and the alien egg, both still fail ...