Solved
Gno Problemo Medal is glitched for me in Town Center
So I got everything in Town Center except for medals and one of the medals says that you need to survive all gnome challenges (50% complete) and I don't know what to do I beat Sir Biff I got all Diam...
There are 2 golden gnomes that involve fighting gnomes to get them. 1 on the beach where you defend from exploding gnomes and the other to the left of the museum where you shoot only gnomes with blasters. I thought the medal was glitched myself because I had gotten all of the golden and diamond gnomes mostly on my own but a few from a friends game that already had them unlocked. Because if this I missed fighting the blaster gnomes so I went back and fought them and ended up getting the medal.
