Use a free online converter like ytmp3.nu or savemp3.to . Paste the YouTube link and download the file as an MP3. Warning: Use an ad-blocker to avoid pop-ups.

Your phone is currently set to a boring default chime. Change it. Download that squeaky bamboo copter. Let the world hear the blue robotic cat’s chipmunk laugh. Join the thousands who have discovered that true digital freedom sounds a lot like a helium-infused anime theme.

Go to YouTube. Search for "Doraemon memekan ringtone" or "nada dering Doraemon lucu memek." Look for videos with 100k+ views (community approved).

You don't need a 3-minute song. You need 15-20 seconds. Use a free audio trimmer like mp3cut.net . Isolate the squeakiest, funniest part.