Causes a ceiling to fall when an explosion is detected within the sector. This effect was not used in the game. It was probably made for testing reasons only, but it's still pretty cool and would be a good addition to any level!
Create the sector with the ceiling which will fall.
Place the following sprites in the sector: S[Channel,19]
(Sp[0,Speed]). The Channel is used to activate other S[Channel,19]
sprites at the same time. It is also helpful if you place an explosive of some sort in your level (so you can cause an explosion within the sector).
Notes: