Idea for 10th world
It's called Narrow Pyramid, like the ones in Egypt, where there are two large pyramids separated by a river with a bridge and a secret passage to cross under the riverbed. You will spawn in a room above the flag room, there is a large corridor with some halls to go left, right, or the secret entrance. There are also two towers near the river as sniping.
Another idea:
It's called Narrow Rainforest. The entire area has lots of trees. There are two large ruins of old fortresses, and a large, narrow plank over spiky plants. There is a secret passage that will allow you to go to your enemies towers. There is also a large tree with a ladder for you to snipe enemies. You will spawn beside the flag room, and a balcony to snipe from the spawn room.
Even if this is not accepted, I hope you enjoyed reading this. 🙂