Flip-side World

A flip-side world is a type of world that isn't spherical (therefore not a true planet). Many of the times they are squarish like square worlds or box shaped. In many things they are similar, but there is one thing that is majorly different: There is two different gravity wells, one at top in the world's atmosphere, and one at the bottom.

Interestingly enough, the well that pulls is always the farthest away. Due to this, you are always being pulled towards the ground, and not off into the air and/or shot into space. And you can get to the other walk-able side (and use the other gravity well) by jumping off right next to the world and fall until the gravity is, in a sense, flipped, where then the person aims for the land.