Here's my idea.
You jump off a HUGE Green, temple-like mountain, volcanoes are busting, and meteors are falling, after you jump down, you start parkouring through this tragic stage with meteors falling next to and moderately big meteors falling into the stage. The place looks like mountains, and two or three wrecked houses. There are holes to hide in if something falls on you, or if something behind you is rolling and is about to crush you while trying to escape. There are hills you can climb onto for safety or huts to go into. In the houses, there are windows to jump through. There are weapons to get the other guy out of the way. When you get near the end, a giant meteor falls and the only way is to climb up, because walls. Wrecked walls, of course. Gaps will also be next to and in the path of the stage, because tragic stage. There can also be multiple paths to win barriers.
Penalties:
If you don't jump off, a huge shooting meteor with a loss barrier will hit you.
If you get hit by anything endangering you, you lose.
There can also be instagib lava. Gotta love instagib lava.