Green Hill Zone Simulator

More momentum than Sonic GT!

Screenshot

Overview

Hey, chilli dog boy, hedgehog man, your worst nightmare has arrived...

Green Hill Zone Simulator is a over-simplistic 2D high momentum Sonic fan game, built as a """sequel""" to the highly acclaimed Sonic Mania, focusing on high-momentum real-time floor sliding, slope jumping and wall jumping physics.

Green Hill Zone Simulator is built in the Godot Engine, free software under the terms of the GNU General Public License.

Controls

Keyboard

←/→ or A/D - Move Sonic left/right
↓ or S - Make Sonic roll if he's moving
- Rolling will preserve Sonic's momentum, but he can't change his direction until you stop rolling.
Space - Make Sonic jump
- If Sonic jumps again while touching a wall, he can jump off of it.
- Jumping will increase Sonic's speed. Chain together high-speed jumps to achieve maximum momentum.
F4, F11 or Alt+Enter - Toggle fullscreen

Controller

These are mapped to different controllers in the format Xbox/PlayStation/Nintendo.

For example, A/Cross/B means A on Xbox, Cross on PlayStation, and B on Nintendo.

Left Stick or D-Pad - Move Sonic left/right
Left Stick Down or D-Pad Down - Make Sonic roll if he's moving
- Rolling will preserve Sonic's momentum, but he can't change his direction until you stop rolling.
A/Cross/B - Make Sonic jump
- If Sonic jumps again while touching a wall, he can jump off of it.
- Jumping will increase Sonic's speed. Chain together high-speed jumps to achieve maximum momentum.
View/Share/- - Toggle fullscreen

Touch

If your touch screen is recognised by Godot Engine, the on-screen touch controls will become available. You can still use a connected keyboard or controller.

◀/▶ - Move Sonic left/right
SPIN - Make Sonic roll if he's moving
- Rolling will preserve Sonic's momentum, but he can't change his direction until you stop rolling.
JUMP - Make Sonic jump
- If Sonic jumps again while touching a wall, he can jump off of it.
- Jumping will increase Sonic's speed. Chain together high-speed jumps to achieve maximum momentum.

Mechanics

Wall Jumping

Press the Jump button while touching a wall and not the floor to jump off of the wall. This jump is useful for reversing Sonic's direction if he's about to run into a wall.

Bunnyhopping

Pressing the Jump button to jump off the floor while Sonic is moving will multiply Sonic's speed by 1.3. Chain together these jumps to bunnyhop and break the speed limits! At least until you run into a wall or a ditch.

RAGE 2024

Green Hill Zone Simulator is intended as an entry into RAGE 2024.

To learn more about RAGE 2024, check out the Sonic Fan Games HQ forum post.

Testing

Green Hill Zone Simulator has been tested on Windows, Fedora Linux and Android, and functions well on all these platforms, however macOS and iOS have not been tested, and additionally I don't possess the resources or time to develop for iOS. I also don't have the mental capacity to test on every Linux distro ever made, but it should work fine.

Still, since the game is built on Godot Engine, it should be possible to build a version for iOS, or potentially game consoles.

(Yeah, imagine the game running on the PS5 /s)

Test Plan

✅ - Fully or mostly meets expectations.
❇️ - Partially or technically meets expectations.
❎ - Does not meet expectations or testing is impossible.
❔ - Haven't tested yet due to time constraints.

Test	Expectation	Windows	Fedora	Android
Launching game	Launches fine.	✅	✅	✅
Intro video	Plays and scales to screen, with skip working.	✅	✅	✅
Skip hint adapts to controller	Changes the skip hint depending on the plugged-in controller, or if on Android, changes to "Touch screen to skip".	✅	❔	✅
Switching to full screen mode	Works.	✅, but taskbar sometimes displays over the game	✅	❇️, is fullscreen anyway
Switching back to windowed mode	Works.	✅	✅	❎, no windowed mode
Keyboard	Input works as expected.	✅	✅	✅
Xbox controller	Input works as expected and the A button appears on the skip hint.	✅	✅	✅
DualShock 4	Input works as expected and the Cross button appears on the skip hint.	✅	✅	✅
DualSense	Input works as expected and the Cross button appears on the skip hint.	✅	✅	✅
Touch controls	Appears properly on touch-enabled devices.	❎, no touch screen	❎, no touch screen	✅
Touch input	Properly maps input when touched.	❎, no touch screen	❎, no touch screen	✅
Sonic's movement	Sonic can move, roll, jump, wall jump and bunnyhop.	✅	✅	✅
Speedometer	Updates with Sonic's velocity.	✅	✅	✅
Speed Rank	Updates according to the speedometer.	✅	✅	✅
Rings	Can be collected.	✅	✅	✅
Death zones	Plays the death sound and respawns Sonic at the start.	✅	✅	✅
Out of bounds	Performs the BSOD easter egg and uses the appropriate font.	✅	✅	✅
Goal post	Transitions to the victory screen, plays victory music and quits game automatically.	✅	✅	✅

Credits

Green Hill Zone Simulator authored and developed by Arsalan "Velocity" Kazmi (That1M8Head).

The game's graphics and music are lifted from Sonic Mania, which is copyright of SEGA and submitted by Random Talking Bush on The Sprites Resource.

The game's movement sound effect is "Concrete scrape loop" on YouTube, uploaded by TheFkksounds.

The game's jump sound effect is from a cutscene in Shadow the Hedgehog (2005), also copyright of SEGA.

The game's death sound effect is from Sonic Unleashed, also also copyright copyright of of SEGA SEGA and submitted by Chaofanatic and Random Talking Bush on The Sounds Resource.

The top-left HUD was inspired by the skit "That Stupid Pit" from Sonic Shorts: Volume 8.

The BSOD Easter egg is a reference to the well-known Blue Screen of Death error message (officially known as the Stop error),used in the Microsoft Windows line of operating systems, specifically the version from Windows 7.

Sonic GT, referenced in the tagline, is an incredibly fun Sonic fan game by Gabriel Gonzalez on GameJolt. Green Hill Zone Simulator doesn't intend to mock Sonic GT in any way, in fact I love it, it's just the first thing that came to mind when thinking of a high-momentum Sonic game.