bullet hell

noun

1. A (genre of) two-dimensional shoot 'em up in which the playfield is almost filled with a barrage of enemy bullets.

   “Mars Matrix is a bullet hell game that is pretty well designed.”

   “A few of the game cabinets are connected to flat-screen TVs so bystanders can stop and ogle. Grimy VCRs are hooked up to bullet-hell shooting games...”