*This post is a stub (incomplete).

We will make following using Godot 4:

1. Climbing ropes or ladders. Ropes will be line2D with an area2D attached. And player character body will try to keep its position within line and move up/down.
2. Grappling hook mechanics (link to grappling hook post).
3. moving platforms (up/down, hiding/showing).
4. double jumps
5. spikes that kill the player
6. lava killing the player
7. breakable platforms (as we stand on the weak platforms such as wood or loose stones, break them).
8. collecting coins or other things.

Some images for inspiration:

Currently, I am pushing this post; but will write about it later when I implement it in my game.