Shining Resonance Refrain.
The gameplay for it is basic as shit, but goddamn, that game had me consistently laughing. It has the usual anime bullcrap jokes (though it does subvert the usual "boys want to peek at the girls' bathhouse" trope hilariously), along with a bunch of really silly things like a villain stopping on top of a dragon to play a giant lance like a clarinet, a woman using magic to pick carrots out of her dinner, and a small boy saying the line "Hey, Little Miss Nightmare. How are those pancakes on your chest coming along?"