The Hot Spring Egg is an HP-recovering item in Mother 3. It can be obtained by Lucas and co. by having a Fresh Egg in their inventory while entering a Hot Spring. This item recovers around 100 HP. It is much cheaper than Double Jerkies or Luxury Bananas, and can be sold for 30 DP.
- It may be a reference to the 'Hot Springs Egg' items in the Nintendo game Kaeru No Tame Ni Kane Wa Naru, or The Frog for whom the Bell Tolls.