Toad Radar

The Toad Radar is a gadget in Paper Mario: The Origami King. It is obtained at the Sensor Lab as soon as it becomes available, after Mario has destroyed the red streamer (which was also wrapped around the Sensor Lab). When Mario equips the Toad Radar, it goes on top of Mario's head and spins around, giving strong reactions when Mario is closer to a hidden Toad. It is especially useful in areas with tall grass, where signs of hidden Toads are completely concealed. However, its battery slowly drains over time while in use, but can be recharged at the Sensor Lab for 500 coins. On Club Island, a Snifit can recharge the Toad Radar for 1000 coins.

The Hidden Block Unhider is an equivalent of the Toad Radar that seeks out hidden ? Blocks.

Names in other languages
Radar Toad