[Ultra Sun] Pokemon USUM: Doubles Edition FULL RELEASE + POSTGAME

[Runawayturtle1]

Hack of: Pokemon Ultra Sun and Ultra Moon
Official Release: 4 November 2025
Current Version: 2.0.1
Status: Main and Postgame Complete
Doubles Hack Discord Community​

Return to Alola for a fresh new all-double-battle experience with increased difficulty, balance changes to improve viability and variety, loads of Quality-of-Life improvements, and an extra-challenging postgame!

Download and Documentation

Spoiler: Screenshots

Refined, Rewarding Battles

• Every trainer has been custom-made with a double-battle team that will keep the player engaged from start-to-finish, and beyond!
• Opponent trainers have been designed for players to strategize against
  • Universal max-strength doubles AI
  • Limited moves per Pokemon (usually just 3)
  • Unique Speed stats to avoid same-trainer speed ties
• Similar to my most recent hack, Spirits of the Storm, all moves now have a one-battle PP scale;
  • All moves have no more than 10pp, usually closer to 5 for standard strong attacks and 1-3 for status moves.
  • PP restoration has been made significantly easier to compensate.
• Accuracy has been increased to 100% for most inaccurate moves, which are now balanced by lower-PP rather than inconsistency

True Potential Unlocked

• Many Pokemon have been rebalanced with new Moves and Abilities (plus sometimes Stats and Types as well)
  • Don't expect massive makeovers; most Pokemon retain the identities that players will expect.
• Players can also find stat-specific "Wing" items in the overworld that grant 64 EVs
  • In fact, just about every overworld item has been reconfigured
  • Now players will be genuinely rewarded for their exploration with new options for customizing their team!
• Nearly every Mega Stone can be found in the overworld before taking on the Pokemon League.
• Take your team past the Champion and face down a truly brutal complete postgame

Fresh Faces in Alola

• The Pokemon encountered in the Alola region are largely the same on the surface, but the entire National Dex is now catchable in one save file through USUM's various encounter systems!
• Most non-legendary out-of-region Pokemon are now encounterable through SOS calls.
• Others can be obtained with their hidden abilities or with special moves through in-game trades or by using Island Scan.
• Certain areas like Malie Garden and the postgame portion of Poni Island have also been reworked to prominently feature out-of-region Pokemon as well.

Modern Quality of Life

• A pair of infinite-Use "Recharge" items let the player quickly restore their team without trips back to a Pokecenter.
• The player will also receive an "Infinite Candy" to reduce grinding, if desired.
• All Pokecenter Cafes have been repurposed into Move Reminders, and Heart Scales are purchasable.
• All Move Tutor moves cost 0 BP, and can thus be taught freely after arriving to each beach!
• Many other useful items are also purchasable at various locations.
• Fully console compatible.
• Fully documented.

Special thanks to:

• Kaphotics for developing pk3ds, which was used to make 99% of the changes
• All the folks in the 3DS Pokemon modding discord and specifically ABZB (noted goat) for answering my gajillion questions
• Both the MAPM community and my Romhacking Discord for feedback and support over the last 9 months <3

 

[chiudetemilaudio]

This looks really interesting, I'm always eager to play some gen VI / VII hacks and will def try this one too asap, I like the concept of it being a full double battle game, it really changes A LOT even without completely overhauling the base. Will update you on how it goes :)