What if Skype for Game Boy.
HEY BONUS FACT YOU CAN ACTUALLY USE THIS AS YOUR SKYPE RINGTONE
I managed to get a version compressed enough to fit a full loop into 1.5MB, meaning you can now /actually/ use this as a ringtone. Welp. Sorry about that. MUCHOS THANKSOS TO THE RANDOM ANON WHO GAVE ME TIPS ON THAT WHOLE THING