Bio-Hazard Battle/YMMV


 * Goddamned Bats: The cave stage has them. Although they don't fire at all, they tend to appear in groups. And if they fly off the left side of the screen... they come back in facing right, and try to fly into you again!
 * One of the enemies found in the final stage disables your Attack Drone by encasing it. Until your drone can shoot its way out, you'll have to rely on your regular weapon! Thankfully, you only encounter about 3-4 of them or so.
 * That One Boss: Many people consider that shark/gulper eel hybrid to be the toughest boss, and the constant stream of Mooks that come with him don't help. Everything's Even Worse with Sharks, it seems.