My, The intensity in this one blows me away.
This, although a sprite flash made in the early days of flash, has been so prominent in Mario flashes even today.
This whole thing builds up the rest of the episodes and the way thanks to this episode. The drama, the plot, the music and end enhances the feel of how grim the situation is and how dark the Mario series is perceived through your animation.
TL;DR. Holy shit.