Retro Papa PS5 Beta

Retro Papa is a native retro frontend for jailbroken PS5s. This repo contains beta builds.

No ROMs, disc images or PlayStation BIOS files are included.

Install

First install or manual update

Run your normal exploit / etaHEN setup.
Load RetroPapa-Installer.elf with PayloadManager or another PS5 ELF loader.
Wait for the Retro Papa notification.
Open Retro Papa from the Games screen.

From v1.1.9b onward, the installer also handles the resident service setup when PayloadManager is detected:

installs/updates retro-papa-native.elf in PayloadManager's managed payload storage;
adds retro-papa-native.elf to PayloadManager autoload if it is missing;
preserves existing payload entries, delays and ordering;
does not enable or disable PayloadManager autoload globally.

If PayloadManager is not installed, Retro Papa still installs normally.

After a reboot - v1.1.9b and newer

If PayloadManager is installed and its autoload feature is enabled:

Run your normal exploit / etaHEN setup.
Start PayloadManager as usual.
Let its autoload sequence finish.
Wait for the Retro Papa is ready notification.
Open Retro Papa from Games.

RetroPapa-Start.elf is no longer required for the normal PayloadManager setup from v1.1.9b onward.

If PayloadManager is not installed, or if its autoload feature is disabled, start the installed resident with your usual PS5 ELF loader:

/data/homebrew/RetroPapa/retro-papa-native.elf

Retro Papa does not force-enable PayloadManager autoload if you intentionally disabled it.

Older beta builds

Betas before v1.1.9b used RetroPapa-Start.elf after a full reboot. Run the newer RetroPapa-Installer.elf once to migrate to the resident/autoload setup.

In-app updates

From v1.1.9b onward, builds that have an OTA channel configured expose:

Retro Papa -> Settings -> Update Retro Papa

OTA downloads are DNS-independent: once an OTA channel is configured, Retro Papa can download and install updates without requiring working DNS configuration on the PS5.

You can still install a newer beta manually with RetroPapa-Installer.elf.

Tested on PS5

Nintendo Entertainment System - Mednafen
Super Nintendo - LakeSnes
Mega Drive / Genesis - Mednafen
PlayStation - Mednafen
Arcade - FBNeo

Not tested yet

Mednafen itself supports more systems, but they are not wired into Retro Papa or tested on PS5 yet:

Apple II / II+ / IIe
Atari Lynx
Neo Geo Pocket / Color
WonderSwan / WonderSwan Color
Game Boy / Game Boy Color
Game Boy Advance
Virtual Boy
PC Engine / TurboGrafx-16 / CD
SuperGrafx
PC-FX
Sega Game Gear
Sega Master System
Sega Saturn

Do not treat these as supported yet. A system only moves to the tested list after it works through Retro Papa on real PS5 hardware.

The beta package includes the current ROM folder layout, PS1 BIOS setup, controls and save instructions in README.txt.

Existing data

The installer is meant to leave your own data alone, including ROMs, BIOS files, saves, states, settings and favorites. Keep a backup of anything important before testing beta builds anyway.

When PayloadManager is present, Retro Papa only adds its own retro-papa-native.elf autoload entry if it is missing. Existing PayloadManager entries and delays are preserved.

Downloads

Beta builds are posted in Releases. Each release includes hashes so you can verify the files you downloaded.

Credits

Retro Papa uses or adapts work from these projects:

ItsBlurf/BFplayer and ps5-payload-dev/websrv - resident launcher / ELF replacement core
ps5-payload-dev/SDL - PS5 SDL2 port
Mednafen 1.32.1 - NES, Mega Drive / Genesis and PlayStation emulation
ps5-payload-dev/LakeSnes - Super Nintendo emulation
ps5-payload-dev/FBNeo - Arcade emulation
ps5-payload-dev/sdk and PacBrew - PS5 build toolchain and libraries
nothings/stb - helper libraries
Google Fonts Play - UI typeface
OpenGameArt / todak-public CC0 tracks - menu music

Thanks to the original authors and maintainers of those projects.

Bug reports

Please include:

PS5 firmware
exploit / etaHEN version
Retro Papa build ID
system and game tested
what happened when launching
whether L3 + R3 returned to Retro Papa
save / auto-resume result, if relevant
the exact error or bad behavior

Do not upload copyrighted ROMs or BIOS files with bug reports.