Dream of

I'm at the playground from my elementary school. It's dark, and I'm with this girl my age who I've never met. So we're playing for a little while, then the ground randomly stars shaking. All of a sudden, these portals appear in the ground, and these multicolored monster things appear and climb out of the portals. They're full of neon colors such as blue, orange, green, and pink. They start playing on the playground and laugh at me as I stand back and watch.