As you can imagine, they're not all great, and singling out the good ones is a bit of a chore.
Thankfully, the Finnish developer has just updated its physics-puzzler with a brand-new episode, which will highlight eight amazing (intentional pun alert!) community-crafted stages each and every week.
You'd better stick your thinking caps on if you want your balloon-, scissor-, and bucket-filled stages to be featured by the Angry Birds developer, then.
Back in July, Pocket Gamer highlighted ten great user-created stages, so be sure to check those out.