Roll through a multiworld campaign where other games unlock your powerups, moving platforms and access to later chapters. Finish stages and selected medal times to send rewards back.
The APWorld defines 585 candidate checks across 117 levels in the Ultra and Bonus Arcs. Defaults activate 66: normal and Silver completions in the first three Ultra Arc chapters. Later chapters, Bonus Arc stages, higher medal times and Treasure Boxes depend on options. The current client hotfix still bundles World version 0.2.0. This page is based on source review; no game session was tested.
Actions and milestones that can send a check to your multiworld.
585 locationsDefault marks checks from configurations selected by standard options; the generated set can still vary with logic and seed.
Learning to Roll Complete
Default
Complete Learning to Roll in Ultra Arc · Get Moving.
Level completions
Learning to Roll Silver Medal
Default
Finish Learning to Roll within its Silver medal time in Ultra Arc · Get Moving.
Silver medal times
Learning to Roll Gold Medal
Finish Learning to Roll within its Gold medal time in Ultra Arc · Get Moving.
Gold medal times
Learning to Roll Diamond Medal
Finish Learning to Roll within its Diamond medal time in Ultra Arc · Get Moving.
Diamond medal times
Learning to Roll Treasure Box
Collect the Treasure Box in Learning to Roll (Ultra Arc · Get Moving).
Treasure Boxes
Learning to Turn Complete
Default
Complete Learning to Turn in Ultra Arc · Get Moving.
Level completions
Learning to Turn Silver Medal
Default
Finish Learning to Turn within its Silver medal time in Ultra Arc · Get Moving.
Silver medal times
Learning to Turn Gold Medal
Finish Learning to Turn within its Gold medal time in Ultra Arc · Get Moving.
Gold medal times
Learning to Turn Diamond Medal
Finish Learning to Turn within its Diamond medal time in Ultra Arc · Get Moving.
Diamond medal times
Learning to Turn Treasure Box
Collect the Treasure Box in Learning to Turn (Ultra Arc · Get Moving).
Treasure Boxes
Bunny Slope Complete
Default
Complete Bunny Slope in Ultra Arc · Get Moving.
Level completions
Bunny Slope Silver Medal
Default
Finish Bunny Slope within its Silver medal time in Ultra Arc · Get Moving.
Silver medal times
Bunny Slope Gold Medal
Finish Bunny Slope within its Gold medal time in Ultra Arc · Get Moving.
Gold medal times
Bunny Slope Diamond Medal
Finish Bunny Slope within its Diamond medal time in Ultra Arc · Get Moving.
Diamond medal times
Bunny Slope Treasure Box
Collect the Treasure Box in Bunny Slope (Ultra Arc · Get Moving).
Treasure Boxes
Learning to Jump Complete
Default
Complete Learning to Jump in Ultra Arc · Get Moving.
Level completions
Learning to Jump Silver Medal
Default
Finish Learning to Jump within its Silver medal time in Ultra Arc · Get Moving.
Silver medal times
Learning to Jump Gold Medal
Finish Learning to Jump within its Gold medal time in Ultra Arc · Get Moving.
Gold medal times
Learning to Jump Diamond Medal
Finish Learning to Jump within its Diamond medal time in Ultra Arc · Get Moving.
Diamond medal times
Learning to Jump Treasure Box
Collect the Treasure Box in Learning to Jump (Ultra Arc · Get Moving).
Treasure Boxes
Playing with others
One single-player marble campaign per Archipelago slot. Multiworld players can progress together or at different times while the room is available. Native Marble It Up! multiplayer is deliberately disabled, not integrated as shared co-op.
Known scope and limitations
This is an alpha release. The latest client hotfix remains compatible with the included 0.2.0 APWorld. Install both miuultra.apworld and the client ZIP from the linked release rather than assuming their internal version numbers match.
Use MIUU Mod Loader 0.1.1 and MIUU Console Unlocker 0.1.1, then extract ArchipelagoMIUU into the game's Mods folder. Client 0.2.1 replaced BepInEx; remove the old BepInEx installation when migrating from 0.2.0 or earlier, following the maintainer's instructions.
For native Linux, use the Linux loader and its documented Steam launch option: ./run.sh %command%. The console unlocker has a known Linux input problem that can miss keystrokes. The macOS loader is explicitly untested, so macOS support is not established here.
Open the in-game console with ~ and use apConnect address:port slotName [password]. This release prints the supplied password in the console. Use a unique room-only password and keep console logs, screenshots and recordings private.
Stay connected while completing stages and collecting checks. Progress is checked against the server rather than a persistent offline queue. Restart after connection trouble or before switching rooms; the displayed connection label is not independently updated by a socket-closed handler in the reviewed code.
Reconnection rebuilds received medals and unlocks, and can replay temporary rewards or cosmetic traps. The hotfix disables a problematic duplicate-item handler; it does not establish an exactly-once delivery guarantee for every effect.
Keep traps at zero unless at least one trap weight is positive. With a positive trap percentage and both weights left at zero, the reviewed generator removes trap slots without restoring the corresponding filler count. Start with default options before experimenting with dense bonus-chapter pools.
Native multiplayer, weekly challenges, custom levels, high-score saving, replay saving and Amplitude telemetry are disabled by the mod. Some treasure boxes require intentional deaths, which matters with DeathLink. Back up normal progress; Panludia has not independently completed a campaign with this build.