🐵 Super Monkey Ball Jr. – Game Boy Advance – Authentic & Tested 🐵

Roll into retro fun with Super Monkey Ball Jr. for the Game Boy Advance! This is an authentic Nintendo cartridge, tested and working perfectly — no reproductions here. ✅ 100% genuine Nintendo PCB ✅ Tested on real hardware — boots and plays flawlessly ✅ Label in great condition ✅ Works on GBA, GBA SP, DS, and DS Lite consoles **A must-have for platformer fans and retro game collectors!**