The Spear Knight is a recurring enemy in the Rosenkreuzstilette series.
It appears as a purple knight wielding a spear and shield and attacks by throwing the spear. Due to the shield blocking any attack, it can only be attacked from the front when it is throwing the spear. The Spear Knight functions similar to the Sniper Joe series of enemies in many Mega Man games, specifically the Hammer Joe enemies from Mega Man 3.
In Rosenkreuzstilette, they are found at the Imperial Training Hall (the opening stage), Heiligtum des Wasserteufels (Trauare's stage), The Fortress City of Zuverburg (Sichte's stage), the Research Tower (Liebea's stage), Zeppelin's Castle, and stage 3 of Iris Palace. In Rosenkreuzstilette Freudenstachel, they are found at the Research Tower (Liebea's stage in the C75 Trial version) and the Zuverburg Clock Tower (Sichte's stage).
Axe Knights behave like the Axe Armors of the Castlevania series in that they throw boomeranging axes. In addition to this they also have the defenses of a Spear Knight and their axes block certain attacks as well. They are found in the Royal Palace (Pamela Arwig's stage.)