SuccessHK have posted the release of several new GBA titles and also the price drop of the Silver GBA Micro to $107 , heres the new games:

GameBoy Micro GameBoy Micro US ver. - Silver Price Dropped.
Xevious The Avenger New Stock.
Tetris Worlds New Stock.
PAC-MAN Collection New Stock.
Metroid New Stock.
F-Zero GP Legend New Stock.
GameBoy Advance Castlevania New Stock.
GameBoy Advance Astro Boy Omega Factor New Stock.