The title pretty much sums up Jewelry Master Twinkle. It’s a
Tetris-like falling block game with three difficulty modes and three girls. As you erase blocks and jewels, the girls talk to you and change outfits, if you score enough points.
Jewelry Master Twinkle is actually based on another Arika game. No, not Tetris: The Grandmaster Ace. Arika originally made Jewelry Master for PCs. The Xbox 360 version adds the date-like background scenarios and a replay mode which allows you to save your best runs. While Jewelry Master Twinkle was made in Japan, Arika translated the menus and dialogue into English.
You can get Jewelry Master Twinkle from the Xbox Live Indie Games channel for 400 Microsoft Points ($5).