How are these things here?

Coolblocks749 - Custom level - Mar 5, 2016 from Android

Play Edit 6 players liked this.

For those who dont know, im coolboocks749, used to be acitve about a year ago, went unactive around the bob vs ueuo battle due to moving.

What is the origin level of these things and how did they get into the game?

Downloads: 69 - Level ID: 21206