Uploaded March 2026 | Updated September 2026, 7 hours ago
Ever wondered how to create that smooth Mario Galaxy-style radial movement in your 2D platformer? Most Godot developers struggle with this because they're thinking in absolute screen space coordinates.
In this tutorial, I'll show you the secret: leveraging CharacterBody2D's up_direction property to let Godot's physics engine do the heavy lifting. No custom physics, no fighting the engine. Just smart use of built-in features.
You'll learn how to decompose movement into parallel and perpendicular vectors relative to your character's orientation, enabling seamless gravity transitions and radial planetary movement.
By the end, you'll have a working 2D Mario Galaxy movement system that supports:
- Walking around planets
- Smooth gravity transitions
- Moving and spinning platforms
- Physics-based animations
Get the Godot 2D Platformer Character asset pack:
🧑🚀ludonauta.itch.io/godot-platformer-character
Join the Ludonauts Headquarter on itch!
🌕ludonauta.itch.io/headquarter
Get the Godot Adventure Essentials course:
🎓ludonauta.itch.io/godot-adventure-essentials
Learn the Platformer Essentials Cookbook:
📘ludonauta.itch.io/platformer-essentials
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Chapters
00:00 - I. Introduction to Mario Galaxy 2D Movement
00:27 - II. Understanding the Implementation Rationale
01:23 - III. The Up Direction Secret
02:22 - IV. The Mooncheeser Story
03:21 - V. Breaking Down Traditional Platformer Physics
04:50 - VI. The Mega Man X Gravity Puzzle Problem
06:17 - VII. Vector Decomposition Solution
08:08 - VIII. Implementing Radial Gravity
10:01 - IX. Area2D Detection System
12:49 - X. Godot Engine Implementation
14:40 - XI. Animatable Bodies and Moving Platforms
16:37 - XII. Mini Course and Community
Ever wondered how to create that smooth Mario Galaxy-style radial movement in your 2D platformer? Most Godot developers struggle with this because they're thinking in absolute screen space coordinates.
In this tutorial, I'll show you the secret: leveraging CharacterBody2D's up_direction property to let Godot's physics engine do the heavy lifting. No custom physics, no fighting the engine. Just smart use of built-in features.
You'll learn how to decompose movement into parallel and perpendicular vectors relative to your character's orientation, enabling seamless gravity transitions and radial planetary movement.
By the end, you'll have a working 2D Mario Galaxy movement system that supports:
- Walking around planets
- Smooth gravity transitions
- Moving and spinning platforms
- Physics-based animations
Get the Godot 2D Platformer Character asset pack:
🧑🚀ludonauta.itch.io/godot-platformer-character
Join the Ludonauts Headquarter on itch!
🌕ludonauta.itch.io/headquarter
Get the Godot Adventure Essentials course:
🎓ludonauta.itch.io/godot-adventure-essentials
Learn the Platformer Essentials Cookbook:
📘ludonauta.itch.io/platformer-essentials
---
Chapters
00:00 - I. Introduction to Mario Galaxy 2D Movement
00:27 - II. Understanding the Implementation Rationale
01:23 - III. The Up Direction Secret
02:22 - IV. The Mooncheeser Story
03:21 - V. Breaking Down Traditional Platformer Physics
04:50 - VI. The Mega Man X Gravity Puzzle Problem
06:17 - VII. Vector Decomposition Solution
08:08 - VIII. Implementing Radial Gravity
10:01 - IX. Area2D Detection System
12:49 - X. Godot Engine Implementation
14:40 - XI. Animatable Bodies and Moving Platforms
16:37 - XII. Mini Course and Community
