The 联防 phase plays m_bat_corrosion (intro + loop), the track of the official escaped stages, instead of carrying on with the round's battle music; without the downloaded track it falls back to the battle music. Asset plan, manifest entry (audio.bgm.unite), audio.js and tests. Contributed by @Convey123.
The emote E2E suite accepts either the local-client extraction or the copies tools/fetch-assets.mjs downloads (public/assets/ui/emoticon), and checks the wheel's official cell sprite only when the local ui/battle art is present. Contributed by @Convey123.
Convey123