Tom Clancy's Splinter Cell: Chaos Theory (Limited Collector's Edition)

This is the only Gamecube game to be released in a metal slipcase. The disc holders inside the case are designed to fit full-sized discs, as Ubisoft didn't bother to design a separate case from the PS2 and Xbox versions.

The next closest you'd find is the limited edition of Resident Evil 4, which Gamestop released in a collector's tin.