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Play Sigma Harmonics (Japan edition · Japanese / English) Online
Sigma Harmonics
Play Sigma Harmonics online. Collect clues, fit them to the deduction board and battle to restore the past. See the Nintendo DS starting guide and controls.
Browser play
Nintendo DS (NDS) — EmulatorJS controls
Default Player 1 keyboard mapping. Change keys in Controller Settings.
| Console button | Keyboard |
|---|---|
| ↑ / ↓ / ← / → | ↑ / ↓ / ← / → |
| A / B / X / Y | Z / X / A / S |
| L / R | Q / E |
| START / SELECT | Enter / V |
| Microphone | Not assigned |
Open Controller Settings to configure your keyboard or gamepad. Touch controls are available on mobile.
How to Play Sigma Harmonics
Quick start
Read the opening, inspect the first scene and collect clues. Open deduction when ready, then follow the first battle's card instructions.
Controls
Use the DS touch interface to examine scenes and place clues on the thought board. In battles select ready Shikifuda actions as their timers allow; follow the book-style screen layout.
Sigma Harmonics — About this game
Sigma and Neon investigate murders in a rewritten history to recover their lost future. Exploration produces clues for a thought board, where arranging evidence forms a deduction. Battles use an active-time system with actions chosen from Shikifuda cards, so investigation and fighting require different decisions. Start by examining the first scene and recording its clues before placing them. When combat begins, watch the ready actions and choose deliberately instead of treating the cards as evidence pieces.
Sigma Harmonics Game manuals
Cheats
No cheats have been added for this edition.
Player verification and sources
Browser play was reviewed before this edition was published in the catalogue. The date below is the catalogue publication date, not the game’s original release date.
- Browser test and catalogue publication date
- Browsers and devices
- PC: Chrome, Edge and Firefox. Mobile: Chrome on Android and Safari on iPhone and iPad.
- Player engine and core
- EmulatorJS 4.3.0-pre · nds
- Tested by
- rwEmulator
Sources and editorial basis
rwEmulator reviews edition metadata, release information, game manuals and first-hand browser-play notes. Available manuals are linked below; the editorial policy explains how facts are checked and corrections are handled.