Switch-type Elevator is a platform with a button on it, and everytime X jumps and lands on it, the directional arrow, and thus the direction it goes, changes. It is essential to pass through Agile's stage in the X-Hunter base which is found to be quite annoying by some gamers. It's in Flame Stag's, Bubble Crab's, Wheel Gator's, and Crystal Snail's stages as well.
It also appears in Mega Man X5. One is in Dark Dizzy's stage though X (or Zero) has to jump on and off it frequently. Two more are in Mattrex's stage during the battle with the mini-boss.