Hi Debbie,
nearly all games come in a German version, but also contain other languages. Super Mario Sunshine for example comes in German, Italian, Spanish, French and English. The American games are not compatible with German Gamecubes and vice versa, but you can use a special boot-CD to play US or Japanese games on the German set. BTW, Microsoft and Sony use the same strategy with the X-Box and the PS1 and 2. They want to prevent us Europeans to buy titles already released in the US, but not yet available over here. Additionally we use a different TV-system over here: It's called PAL (The French use SECAM), and it provides a better picture quality than the NTSC-system used in the States (Sorry!!) , but most TV-sets, VCRs and DVD-players in Europe are also capable to show NTSC.
I'm a real video-game buff: I started with Pong in the 70ies, was one of the first buyers of the Atari 2600 system, spent long nights at the Commodore 64, then had a NES, still have a SNES, a Nintendo 64 and was also a launching customer for all Gameboys, starting with the Original in '89 up to the GBA. I will take my Gameboy Advance to the cruise. And last but not least I also have a Dreamcast and a highend-PC equipped with a ForceFeeedback-Joystick, a ForceFeedback-Wheel and a MS FreestylePro Joypad. Perhaps Cameron and me can have a go at the Gameboy or the Gamecube while on the ship.