Simple 2000 Series Vol. 55: The Catfight: Joneko Densetsu

Simple 2000 Series Vol 55: The Catfight (Onna Neko Densetsu or Joneko Densetsu), or simply Fighting Angels in Europe, is an all-bikini-girl fighter which allows you to choose from one of ten characters (one character, boss character, is unlockable) and up to 11 different costumes (9 of which are shared among the different characters). The game plays as a fully 3D arena fighting game which implements common fighter features such as basic moves and combos, guard and counter guard system, a "Sexy"/"Love" meter system which allows an enhanced countering (unleashes a quick counter move automatically after guarding against the move) action and, when full, provides a super move called "Sexy Dance" which unleashes a powerful combo.
As for game modes, it provides two types of matches - regular battles and weapon matches, the latter of which randomly spawns a weapon in some part of the ring which can either be a Bat w/ Nails, Katana, Steel Chair, Assault Rifle. These weapons have a limited number of uses (about 4, regardless of whether they hit the opponent or not) and when the only weapon is "lost" or "destroyed" another one will spawn at one of the four corners of the arena.
In short, Fighting Angels can be fun but simple fighter game, especially if you don't mind (or are into) the scantily-clad-women-beating-the-crap-out-of-each-other-while-being-cute (except for when they bring the weapons out: especially the assault rifle) type of thing...