FallingSpike is spike that fall when player touch a TouchTrigger (iCounter is use to link TouchTrigger and FallinSpike).
When player hit TouchTrigger, FallingSpike go down until hit block or stair.
At each cyle, iYD increase by 2 upto 16.
|0||No||Kill player (die 0) based on background under falling spike|
|2→16||Yest||-4 of health when hit player|
Locked door remove trigger object.