There are many other enemy types too — all with different attack patterns that keep things interesting and challenging. (feedspot.com)
It's only so useful learning the ropes this way, since many bosses use different attack patterns on Regular, or adopt a new form you won't see at all on Simple. (pcgamer.com)
Three of the levels end in boss fights, but two of them are against the same large tank, which has a slightly different attack pattern the second time around. (giantbomb.com)