Dancing Sword: Senkou is a Japan-exclusive GBA weapons-based brawler featuring an all-female cast of five fighters. Its combat focuses on alternating the two attack buttons to perform various combos. It also features Survival and Training modes.
Gekido Advance, also on the GBA, has a similar combat system that focuses on alternating the two attack buttons to execute various combos.
With five playable characters, this game has more fighters than any other GBA beat 'em up.
Dancing Sword is mediocre. Its combat is supposed to be built around alternating two attack buttons to pull off impressive combos, although it doesn't really matter which one you pick so it's basically a button-masher. The enemies are almost all pushovers and do little besides block. The graphics at least feature huge sprites, but are otherwise unremarkable.