Dinorex - First Half
This stage is all about moving fast, but also not taking damage. If you are playing Dinorex first, you need to achieve GA rank.
Decent
The first section of the stage falling and outrunning the flame throwers. Dashing off the ledges is largely enough to outrun the fire, but be quick. The timing is important for saving a cycle at the bottom in the lava section.
Lava Tunnels
The Heart Tank is in the bottom in the lava, in the far left. Most categories want nothing to do with this.