Five-million-gold armor-slot gun that pivots ninety degrees to also mow down ground troops.
With several of the spider guns wrecked and an armor slot free, the crawlers buy a third, mobile anti-air gun for The Castle. This one can be turned ninety degrees and used against enemies on the ground as well. Donut can't believe they must pay another five million gold after the last gun blew up and argues they should be able to charge the other side for damaging the base; Rosetta corrects her that this is a new gun, not a replacement, earning a harumph.
The purchase also prompts Donut's outrage upon learning a Fix Potion exists.
A rotating gun emplacement mounted in one of the castle's armor slots.
Dual-purpose air and ground defense weapon added before the siege.