《Complementary BGM System》：Stacked Echoes / Stacked Frosts

In Aliisha: The Oblivion of Twin Goddesses, each protagonist — Aisha and Lisha — carries a unique flaw. Aisha cannot feel pain; Lisha lacks emotional intuition. They were designed to complement each other — and so was their music.

To reflect this concept, I composed asymmetric BGM for each character:

🎵 “Stacked Echoes” for Aisha
🎵 “Recountment of the Frosts” for Lisha
🎵 “Stacked Frosts” as their complete, unified theme

When players are apart, each hears a distinct solo track representing their character’s internal world — fragile, incomplete.
But when the sisters are close — physically or emotionally — the music fuses into a full arrangement, richer and more resolved.

🎮 ✨ Technical and Emotional Integration:
This system solves a technical issue (dual BGM playback across two Switch consoles) while deepening immersion:
players literally hear the bond between Aisha and Lisha come together.

🎧 🎬 Full Music Merge is Triggered Under These Conditions:
1. The two characters physically approach each other in-game
2. Both sides of a co-op puzzle are completed
3. Two Switch consoles are brought near in handheld mode
4. Two Switch consoles are docked near each other in TV mode

Whether you play with a friend, sibling, or partner — the music encourages closeness, understanding, and connection.