Graham's DJ

I dreamt I was in one of three arena-like settings. One with a large spider overhead, one with two fighting triceratops an one with two boxing kangaroos. I was in the spider's arena where a giant spider overhead (like 200ft across? Yeah.) was dropping large sphere-shaped blobs on me as I tried to pop them with a stick or something. I remember getting paid a couple thousand bucks everytime I did it without getting hit.