During his brief appearance, Two-Bad is shown the wrong way around (flipped image).
When the heroic warriors are looking down at Skeletor through a hole in the palace floor, the top of Mekaneck's helmet is colored silver instead of red.
When the Skeletoids are arguing with each other outside the Royal Palace, the background layers of the palace entrance on the left side of the screen have been overlay-ed in the wrong order, making the entire wall appear to be transparent lines with the sky visible beneath the line art.
Modulok appears to be working with Skeletor's evil warriors, contradicting his solo appearances in which Skeletor would not let him join.