Cirno: WHOAAA it was all tingly and swirly and suddenly I was somewhere else!
ICE: Yes, that's a teleporter, if you step on one and it's active it will take you somewhere else.
ICE: If the lights on its sides are blinking it means it's active and you can use it.
ICE: The destination telepad does not need to be active to teleport to it, sometimes they are one-way trips.
ICE: You should be wary of telepads even if they are disabled, in case of alarm enemies may try to teleport to the telepad closest to you to try and catch you by surprise
ICE: Never let your guard down!