I've jumped into the void all over the place in both levels, you just keep falling. If there are death planes anywhere, I haven't been able to find them. There are some OOB lava planes in both levels, should we say that they are the target? Maybe adjust the category rules to simply say "Die while out of bounds"? In most cases, the fastest way to die OOB would be the death plane, but rephrasing the rules like that would allow lava planes in cases like this.