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RTMecha @betterlegacy.net · 24/04/2026

Project Arrhythmia is being rebranded to "AfterBeat". However, #betterlegacy related things will continue using the Project Arrhythmia name, the PA acronym and #projectarrhythmia tag. If someone asks what game it is please direct them to AfterBeat. If you have any questions about it, please ask!

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RTMecha @betterlegacy.net · 26/02/2026

Recently found the song that was used in the first demo level in #ProjectArrhythmia 1.0.0, so with this knowledge I decided to do a remake of the level in #BetterLegacy. I wonder where this takes place in the BetterLegacy Story Mode... www.youtube.com/watch?v=Msb2...

youtube.com

Foxberry - Find Us in the Air | WIP Preview 01 (Project Arrhythmia)

YouTube video by System Error [Behind the Scenes]

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RTMecha @betterlegacy.net · 14/02/2026

Yeah, it'd honestly be amazing to see the older versions of the game. I learned about the community just after the player was reworked into the Legacy player. There's so much history that I'd love to learn about with this game!

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RTMecha @betterlegacy.net · 03/01/2026

There's a new version of Kaixo - Alacrit www.youtube.com/watch?v=hr5V... Most likely maybe working on a remake of Colatric 1/5 in #ProjectArrhythmia #BetterLegacy 👀

youtube.com

Kaixo - Alacrit (Reimagined)

YouTube video by Kaixo

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RTMecha @betterlegacy.net · 29/12/2025

Was trying to implement a level recorder / video exporter (for anim difficulty) to the #BetterLegacy mod for the Legacy branch of #ProjectArrhythmia, the furthest I've gotten is actually running the ffmpeg program but after that it doesn't do anything. Any ideas on what might be happening #gamedev?

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RTMecha @betterlegacy.net · 22/12/2025

After a long time, there's a brand new effect: Shockwave! This works similarly to the Shockwave effect in Geometry Dash. (fun fact this is actually the first effect in BetterLegacy since the glitch effects were in the older mods) #ProjectArrhythmia #BetterLegacy

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RTMecha @betterlegacy.net · 21/12/2025

Finally fixed the roof jumping issue and made it possible to jump while gravity is reversed :) #ProjectArrhythmia #BetterLegacy

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RTMecha @betterlegacy.net · 01/10/2025

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

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RTMecha @betterlegacy.net · 23/09/2025

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)

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RTMecha @betterlegacy.net · 18/09/2025

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!

github.com

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...

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RTMecha @betterlegacy.net · 13/09/2025

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.

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RTMecha @betterlegacy.net · 07/09/2025

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)

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RTMecha @betterlegacy.net · 30/08/2025

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

youtu.be

Kaixo - The Other Side | WIP Test 01 (Project Arrhythmia)

YouTube video by System Error [Behind the Scenes]

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RTMecha @betterlegacy.net · 15/08/2025

Snake of Infinite Tail (Kaixo - Do You Feel Time) Do you feel time? Because that snake sure does. #ProjectArrhythmia #BetterLegacy

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RTMecha @betterlegacy.net · 15/07/2025

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

youtu.be

meganeko - Moonflowers | Project Arrhythmia Story Mode Secret Level (BetterLegacy)

YouTube video by RTMecha

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RTMecha @betterlegacy.net · 15/06/2025

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...

github.com

Releases · RTMecha/ProjectLauncher

Stay up to date with the latest Project Arrhythmia mods here! - RTMecha/ProjectLauncher

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RTMecha @betterlegacy.net · 07/06/2025

After what feels like a millennia, you finally found some answers. #ProjectArrhythmia #BetterLegacy Story Mode (Classic Arrhythmia) releases June 15! youtu.be/oJAyaFLSXcc

youtu.be

Project Arrhythmia Story Trailer (BetterLegacy mod)

YouTube video by RTMecha

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RTMecha @betterlegacy.net · 30/05/2025

I guess it's still just me... whoever "me" is anyways... Whatever lies beyond the SECTOR GATE...? Is it... me? #ProjectArrhythmia #BetterLegacy

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RTMecha @betterlegacy.net · 26/05/2025

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

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RTMecha @betterlegacy.net · 19/05/2025

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.

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RTMecha @betterlegacy.net · 30/04/2025

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

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RTMecha @betterlegacy.net · 30/03/2025

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

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