The best way to enjoy Sonic on your PSX - Review of updates 0.5.1 and 0.6

The Sonic the Hedgehog XA project continues to evolve, and its latest versions, 0.5.1 and 0.6, introduce some exciting improvements that make the experience feel closer than ever to a real 16-bit-to-32-bit transition. Built from scratch for original PlayStation hardware, the game keeps growing in ambition, blending authentic retro aesthetics with smoother gameplay and new content that would’ve impressed even in the console’s heyday.

Version 0.5.1 - A Leap in Polish

This version marks a major step forward in both visuals and gameplay refinement, starting with the new off-screen character rendering, which completely eliminates sprite distortion and delivers smoother, cleaner animation. 

The game’s sound has also received a huge upgrade, switching to CD-quality Red Book audio, making every track sound richer and more authentic on real PS1 hardware.

But beyond the technical upgrades, version 0.5.1 also expands the gameplay itself. Players will encounter new, level-specific objects, adding more variety to each stage’s design. From moving platforms to environmental hazards, every zone feels slightly more alive and dynamic.

For the first time, Sonic XA also features fully functional enemies and bosses, complete with unique palettes and animations, transforming the demo into a dynamic experience.

Enemies and bosses are a key feature in Sonic games

Other additions include a pause menu, audio settings, better memory management, and new 1-up mechanics. 

Altogether, v0.5.1 feels cleaner, faster, and more complete version of one of the best homebrew game available on the PSX!

Version 0.6 — A Pink Flash Joins the Race

If version 0.5.1 was already incredible, version 0.6 further enhances the overall experience. Just when things couldn’t get faster, version 0.6 introduces a major surprise: Amy Rose becomes a playable character. With her signature hammer and distinctive style, she adds variety to the gameplay while expanding the roster beyond Sonic himself. While Amy is slower and less agile than her peers, her vertical range and combat mechanics make her gameplay style unique and rewarding.

You have to finish the game to unlock her!

Other fixes include improved hitboxes, enhanced boss interactions and new visual touches such as animals dancing around the player after freeing them from capsules. Even the spin dash dust effect and OPTIONS menu details have been refined for more polish.

The developer has announced that this will be the final version before SAGE 2025, with only critical bug fixes planned for now, as development shifts temporarily to other projects.

Still, Sonic XA v0.6 stands as a major milestone. It is the proof that the PlayStation can truly keep up with the blue blur’s speed and spirit.

A Promising Future for Sonic XA

Sonic the Hedgehog XA is shaping up to be one of the most technically impressive 2D PSX homebrew projects out there. What started as a curiosity a “what if Sonic had a proper PlayStation release?” is turning into a full-fledged game that captures the energy of Sega’s golden age while honoring Sony’s 32-bit legacy.

If these updates are any indication, the future looks bright and fast for Sonic XA.

Here you can see the main post about the game: Sonic The Hedgehog XA

For more detailed info about the different versions, check official links:

V. 0.51 - V. 0.6

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Yume Nikki PSX

 

Developer: Elias Daler

Release Date: November, 2025

Graphics: 3D

Version: 0.00.2

Genre: Adventure 

Players: 1

Description

Yume Nikki PS1 is a recreation made by Elias Daler (also developer of Project MTP) of the original Yume Nikki game for the PSX, reimagined with a fully 3D presentation. This is a short (~10-15 min) demo containing two dream worlds.

Extra info

Originally released in 2004, Yume Nikki was developed by the enigmatic creator Kikiyama and quickly became a cult classic within the indie scene. Unlike traditional games, it offers a deeply atmospheric and surreal experience with minimal narrative guidance, encouraging players to explore strange dream worlds at their own pace. Its unconventional design and haunting tone have gone on to influence countless indie titles over the years.

 

The PSX version aims to recreate the original experience while adapting it to the constraints of the PlayStation hardware, translating the original 2D visuals into a fully 3D environment. Despite being an early project, it already demonstrates how such an abstract and unconventional game can translate to the console. 

 

Development on Yume Nikki PS1 is currently on a limited basis, as the developer is primarily focused on Project MTP. Sporadic updates may still be released, mainly adding small improvements or fixes to the game. The last updates focused on performance improvements, bug fixes, and gameplay stability, particularly in more demanding areas such as Snow World.

 

The demo has the following features:

• Two dream areas (Block World and Snow World) and two effects to find (+2 "pseudo" effects). 
• You can drop effects in Nexus.
• Jumping mechanics.
• Photo mode.
• And much more!

Elias continues to work with the camera, but has stated the following about fixed camera perspective:

"It looks quite pixely in the original PS1's 320x240. Not quite bad though? It runs *really* slow with this render distance on PS1. (~5-10 FPS sometimes). Turns out, Madotsuki moves *really* fast in the OG. 

This kind of perspective is not possible on PS1, sadly... You can't even have normal orthogonal projection on PS1 due to how the hardware works. So I'll experiment with more stuff, but I had to bump the walk speed on this level to 2.5x (!) to make the traversal not as slow...  

There are to many polys for PS1. If there was no culling, the game would have run out of RAM on the first frame."

Example of the fixed camera perspective with issues

An interesting fact about the development:

"Notice how when Madotsuki uses effect/transforms, she temporarily becomes much brighter (to simulate the flashing in the OG).

Kamakurako becomes bright too, but this is a bug... When I looked at it, I thought "Wait, this looks like dynamic lighting!" and decided to leave it."

Both characters have the lighting effect.

Warning: the game might freeze during the loading process when running from CD-R's.

"Unfortunately, many PS1 drives are slowly dying and can have problems reading from CD-R's. Burned CD-Rs use a different technology of encoding the data compared to the licensed pressed CDs.

If the game freezes during the load for you, try restarting and trying again."

Changelog

v0.00.2

• Improved performance in Snow World, reducing slowdowns when rendering large numbers of primitives.
• Fixed a crash that could occur when too many elements were displayed in Snow World.
• Resolved an issue where the game could freeze when entering or exiting the igloo while jumping.
• Fixed a bug where a chair could incorrectly appear when re-entering Madotsuki’s apartment while using the chair effect.

v0.00.1

• Significantly increased the render distance in Snow World, improving visibility and overall presentation.
• Prevented players from dropping eggs while using the snowman effect.
• Adjusted player behavior so that menu access and sitting actions require the player to remain grounded for a short time.
• Fixed a bug that allowed free movement while initiating the sitting animation with the chair effect equipped.

 

Media

Official Download Links

Itch.io - YouTube - Twitter (X)  

Loonies 8192 PSX

  

Developer:  thp

Release Date: June, 2020

Last Update: July, 2021

Graphics: 2D

Version: r66

Genre: Puzzle

Players: 1

Description

Loonies 8192 is a minimalist yet deeply addictive retro-style puzzle game that has been ported to an astonishing variety of systems (more than 20 in total) including DOS, PSP, 3DS, GBA, and most importantly, the PSX. Designed by developer thp (Thomas Perl), this humble puzzle experience combines simple mechanics with an enduring challenge that keeps players returning for more.

The port was created using Lameguy64's open source PSn00bSDK.

Extra info

At its core, Loonies 8192 tasks players with aligning and clearing blocks to maximize their score. Blocks fall from the top of the playfield in 2×2 groups of two colors, and players must rotate and position them to create matching 2×2 squares of a single color. Once a vertical sweep line passes over these squares, they are cleared from the board, scoring points and making space for new blocks.

The challenge stems from managing limited space while anticipating how pieces will stack and interact. Aligning larger combinations and chaining clears is key to sustaining play and avoiding a game over. This mix of simple controls and strategic depth makes Loonies 8192 both accessible to newcomers and rewarding for seasoned puzzle fans.

Changelog

r66

This is the latest update available for PSX, although there are other versions up to r69 for other platforms:

• Various visual improvements have been applied.
• Input handling has been improved.
• High scores can now always be submitted, not only when placing in the local

r65

Although this update brought new features for touchscreen platforms, the other platforms had minor changes: 

• The existing ports, including PSX, have been updated with several fixes.
• General improvements and corrections have been incorporated.

r62

This was the first version released for the PSX. It was similar to the version that existed with the r61, but with some changes:

• Save game support is not included, but global leaderboards (using the QR code) do work. 
• The name entry screen for the highscore list has been improved and  now resembles an on-screen keyboard.

For more information, you can check the official posts: 

r62, r65, r66.

Media

Official Download Links

Itch.io - YouTube