FluBBa has released a standalone Arcade emulator for the game Black Tiger to be used on the Gameboy Advance.
This is a Black Tiger/Black Dragon – Arcade emulator for the GBA. It’s missing sound, correct text color, and no screenflip support. You should still be able to enjoy the game though. =)
AEP-Emu (DE/EN)
DMG Page (DE)
Indie Retro News (EN)
Retroguru (EN)