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betterlegacy.net
RTMecha
@betterlegacy.net
Hey, I'm Mecha. I'm the creator of the BetterLegacy mod for Project Arrhythmia.
Lost in a place you don't belong in. A place lost in its own loneliness.

youtu.be/lM1tiQx2jrM

#ProjectArrhythmia #BetterLegacy #SystemError
FUTURE | FreqGen - Future 1996 (Kaixo Remix) (Project Arrhythmia)
YouTube video by RTMecha
youtu.be
October 14, 2025 at 9:38 PM
Just spent the past few days working on these features for #ProjectArrhythmia #BetterLegacy (now in 1.8.4)
- actorFrameTexture modifier that allows you to capture any area and apply it to the object as a texture
- setImage modifiers now apply a texture to the object
- Objects now have color blending
October 1, 2025 at 8:25 AM
In the #BetterLegacy mod for #ProjectArrhythmia, you can create navigate-able levels, alongside rooms that can be culled out when the player is not near.
Also, each room is a singular prefab with different modifier settings on each of them.

(Song is meganeko - IO)
September 23, 2025 at 11:07 AM
The 1.8.0 update for #ProjectArrhythmia #BetterLegacy just released!
A very brief summary:
- Level collections
- A ton of Prefab features (recursive, runtime system, uploading / downloading, etc)
- Seed based random
- Custom achievement system (each level can have their own achievements)
- And more!
Release BetterLegacy 1.8.0 · RTMecha/BetterLegacy
1.8.0 Features Core Added getCurrentLevelName modifier. This passed the current levels' name to other modifiers. Editor Added "Auto Search" in Config Manager > Editor > Data. You can now save th...
github.com
September 18, 2025 at 10:51 PM
The 1.8.0 update for the #BetterLegacy mod of #ProjectArrhythmia (Legacy branch) includes a brand new feature: LEVEL COLLECTIONS! With this you can make custom stories with better flow, progression and even have level hubs?!

Series showcased in this: Color Collider by DiggyDog.
September 13, 2025 at 4:25 PM
Decided to port the Prefab preview feature from the modern #ProjectArrhythmia editor to the #BetterLegacy mod. However, it works a little different here.
In this version, you can set a custom icon via a JPG or use the new capture area feature.

(btw yes I have so many character models oh god)
September 7, 2025 at 12:32 AM
For the longest time I've been trying to figure out how to make a series called "RhythmTech" for #ProjectArrhythmia. (this series has the Colatric boss in it)
So I've started making a few test levels to narrow down the series identity, with this being one of them:
youtu.be/S8s0Bhek3QM
Kaixo - The Other Side | WIP Test 01 (Project Arrhythmia)
YouTube video by System Error [Behind the Scenes]
youtu.be
August 30, 2025 at 10:19 PM
Snake of Infinite Tail (Kaixo - Do You Feel Time)
Do you feel time? Because that snake sure does.

#ProjectArrhythmia #BetterLegacy
August 15, 2025 at 4:14 AM
It's been a month since the 1.7.0 update for #ProjectArrhythmia #BetterLegacy released, so I decided to release a video of the story mode's first secret level.

[ Huh? How do you get it? ]
[ Try harder next time. ]

youtu.be/79TgaE3vXrI
meganeko - Moonflowers | Project Arrhythmia Story Mode Secret Level (BetterLegacy)
YouTube video by RTMecha
youtu.be
July 15, 2025 at 8:26 AM
The 1.7.0 update for #ProjectArrhythmia #BetterLegacy is finally here!
If you want to give it a try, use Project Launcher to setup the mod, if you haven't already. It includes a built-in guide on installation, isn't that handy?
github.com/RTMecha/Proj...
Releases · RTMecha/ProjectLauncher
Stay up to date with the latest Project Arrhythmia mods here! - RTMecha/ProjectLauncher
github.com
June 15, 2025 at 1:50 AM
After what feels like a millennia, you finally found some answers.

#ProjectArrhythmia #BetterLegacy Story Mode (Classic Arrhythmia) releases June 15!

youtu.be/oJAyaFLSXcc
Project Arrhythmia Story Trailer (BetterLegacy mod)
YouTube video by RTMecha
youtu.be
June 7, 2025 at 2:25 PM
I guess it's still just me... whoever "me" is anyways...
Whatever lies beyond the SECTOR GATE...? Is it... me?

#ProjectArrhythmia #BetterLegacy
May 30, 2025 at 8:02 AM
1 - Find the goal and bring them to victory.
2 - Something blocks the path, they cannot progress.
3 - What do they know about the path?
4 - Do they even know what the path is?
5 - Continue, no matter the cost. They will make it to their goal, one way or another.

#ProjectArrhythmia #BetterLegacy
May 26, 2025 at 4:15 PM
Did you know the #BetterLegacy mod for #ProjectArrhythmia is getting a story mode?
Coming in the 1.7.0 update is CLASSIC ARRHYTHMIA Chapter 1, a classic yet fresh take on the PA story mode.

No release date yet, but we do have an internal deadline.
I hope you will enjoy this update when it is done.
May 19, 2025 at 2:51 PM
Background Objects are now better to use than ever before in the #BetterLegacy mod 1.7.0 update. I always liked the uniqueness of these things from old #ProjectArrhythmia so it was about time I improve them.
- Spawn / despawn control
- BG Timeline objects
- BGs in prefabs
April 30, 2025 at 10:47 PM
The editor timeline has been expanded in the 1.7.0 update of the #BetterLegacy mod for #ProjectArrhythmia (Legacy branch)
- Custom bin (row) count w/ vertical scrolling
- Click dragging timeline (based on modern editor)
- Unclamped start time for objects
March 30, 2025 at 3:48 PM