This patch swaps all of the English sounds (including cutscenes!) with their Japanese counterparts (since for some reason, you can’t actually do that in-game in the portable versions). A side effect of this patch is that setting the game’s language to Japanese plays the English dub.
As of now, this doesn’t change any text, just simply swaps the audio, as anything more is a bit out of scope of what I can do (heck, making this solely on my own with now outdated tools was a miracle). If you want a more faithful translation of Fever alongside JP audio, you can always try the Puyo Pop Fever GBA Retranslation!
CRC-32: 524cfd49
SHA-1: af8cecab1cf6df7918835ba71c4d31d116d6d1d4