Some minor differences compared to my full-length run;

1. I summon some extra Imps at the start of the level.

2. I wait for the second Dragon to spawn before I tunnel towards the tentacles. Timing-wise this allows me to make most of the caves I need to tunnel for rooms etc. The Tentacles on the left side of the earthen bridge also generally goes to a more advantageous position.

3. I use two level-ups as soon as I get the Troll. As all the gold already is marked for excavation and I have an extra set of Imps, they will collect all the gold I need for the rest of the level.

4. I sacrifice the two Flies to quicker get the temple available to build on my own AND I sacrifice the two Beetles to quicker get a door so I can make a dedicated room, where Imps cannot run away.

5. Since Cave-In makes the AI of units go back to a spawn point or to their lair, it is possible to juggle them on this map as the pathing tells them to go across the earthen bridge now with Guard Posts. As they attempt to traverse it, they fall back down into the water, and the new pathing again tells them to go around. In this way the Horned Reaper can easily solo all the Tentacles and when they're dead, the white Reaper can be taken care of easily.

6. I was very lucky and got the variation where blue keeper has an Imp stuck at the magic door next to the Avatar. This saves the time needed to knock down the door and to bait blue into killing the Avatar.