Build and Power Mining Laser

[charredUtensil]

This could be an interesting twist on an existing concept: Create a build and power objective to place Mining Lasers in specific spots throughout the cavern. Then, trigger a massive monster wave that abruptly changes the genre to tower defense. Might pair well with disabling fences. Might help if there is a sudden large crystal hoard to defend. Lack of fences can be blamed on hazardous gas buildup in a lava cavern.