Detonator?
Can it be seen during normal play?
If you don't go up with the elevator don't you die?
What's the point?
The charges you have to set in the beginning of oni alpha site. Remember?
It can be seen, but you have to jump down the chute and when you are dead, you can see a bit of red (the detonator)
No, you just get teleported up to it. Anyways, you can go to the detonator with ought going up the elevator.
Its a switch! Remember the switches from old games?
Imppa beat me to it... 20 seconds.