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@piuzera piuzera released this 24 Aug 11:56
· 21 commits to main since this release
v0.1.0
3d4ce13

JUSDecomp v0.1.0 — first public release

Jump Ultimate Stars, running natively on Windows — no emulator, no ROM included. Bring your own legally dumped copy of the game (sha1-gated to the stock dump).

What's in this release

  • Native recompilation of the full game via ndsrecomp: dual-CPU scheduler, recompiled ARM9/ARM7 banks, overlay promotion, melonDS-derived 3D/Wi-Fi, SDL host. Full intro, in-game saves, deck injection, and arcade-stick input.
  • Beginner-friendly launcher — pick your ROM in a file dialog (verified automatically), one-click Play, in-app settings, save import/delete, session logs.
  • English Translation mod (bundled, on by default) — a faithful reproduction of the community English patch, layered over your Japanese ROM at runtime. The stock ROM is never modified.
  • Keyboard remapping — Settings → Map keyboard... to rebind any of the 12 DS buttons (defaults: Z/X = A/B, A/S = Y/X, Q/W = L/R, arrows, Backspace/Enter = Select/Start).
  • Controller setup — guided button capture for gamepads, saved between sessions.

How to play

  1. Download JUSDecomp-v0.1.0.zip and extract it anywhere.
  2. Run JUSDecomp.exe.
  3. Click Change ROM... and select your own Jump Ultimate Stars.nds (unmodified dump).
  4. Click Play Jump Ultimate Stars.

Known issues (v0.1.0)

  • FPS drops during the video intro (gameplay after the intro runs at full speed).
  • FPS drops on the deck builder.
  • Minor visual glitches on some stages (scrolling background elements).

Legal

This project contains only original code and documentation. No Nintendo/Bandai/Shueisha assets are distributed — you must supply your own legally dumped copy of the game. This is an independent, educational work, not affiliated with or endorsed by Nintendo, Bandai Namco, or Shueisha. Licensed under the MIT License.

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