I'm not an epileptic and because of this, I don't usually notice game elements that may trigger a seizure in someone who suffers from epilepsy.
However, the game below just jumps out at me - literally. It's unholy how many flashing bits can be on-screen during the super moves. The writing, the gauges, background, foreground, a crazy chromatic cacophony!
Take a look; it's called Waku Waku 7 and it is a Neogeo MVS (of course) arcade game.