Jubeat
From Rhythm Cons Wiki
Jubeat is an arcade rhythm game made by konami, which uses 16 panels in a 4 x 4 arrangement as a controller.
Buttons
65 x 65mm acrylics on the panel
Are there guides?
Here are some guides (Some of these are not in english):
Here's one that is accurate to arcade size link
This one is a very old/dated one link
English Guide(s)
Here's one for a 24 inch monitor link demo video of this one (includes the lasercutting files)
3D Print version of the controller above (Uses a pro micro instead of teensy) >Github Link<