I would still like to pick up Muchi Muchi Pork someday, but I'm not sure I could deal with the girlie's annoying sound effects.
A lot of people seem to have this fear, and it's a real shame. It's one of Cave's best games, and the sound effects aren't
annoying at all when you're playing the game. They actually serve a useful purpose as they let you know when the bullets are getting
dangerously close to your hitbox.
You already own Pink Sweets, and if those sound effects don't bother you, MMP won't either. I find the voices in PS to be more annoying
than MMP.