Good luck with it, you may be surprised to hear that you're not underestimating the time it takes. :I
@Arglax: It is rather mesmerizing to watch, if i may say so myself, but you'll quickly snap out of it when you realize the kind of threat this guy poses to your health. :U
also YELLOW DEFLECTOR SHIELDS
Those yellow shots CAN hurt you, so at the moment it sucks to be a bullet user against them. :U
In general it just sucks to be up against the yellow Leviathan though, because it moves faster, shoots faster and can take a lot more hits ON TOP OF the yellow shields. Compared to the green one, which can only survive a super shot in the face (and then only one), the yellow one can take two supers to the face with impunity, and every single midsection can also survive one super. It's practically a boss in and of itself, so it probably shouldn't be paired with too many other enemies. ;o
So that, along with the yellow heavy wedge, marks the last mooks that we needed. We're getting pretty far into August though, so i'm no longer sure if we can get the update out during this month, but September is very likely.