MAP21: Failed Experiments and Trashed Aircraft (BTSX-E1)

MAP20: Failed Experiments and Trashed Aircraft is the twentieth level of the first episode of Back to Saturn X. It was designed by Nick Laurent (Hobomaster) and Richard Frei (Tarnsman), and uses the music track "Heliotrope" by James Paddock.

Walkthrough

 * Letters in italics refer to marked spots on the map. Sector numbers in boldface are secrets which count towards the end-of-level tally.

Secrets

 * 1) In the south-east of the map, find a way into the nukage itself, rather than the bridge. The south-west of this room holds a dark tunnel. A backpack and radiation suit are inside.
 * 2) Go down the slime corridor west of the blue key room. At the end, go up the lift. Turn around, and shoot the switch on the opposite platform. This raises a walkway to the platform, which holds a chaingun.

Things
This level contains the following number of things on each skill level: