A legend states that Jirachi will make true any wish that is written on notes attached to its head when it awakens. If this Pokemon senses danger, it will fight without awakening.
"Jirachi?" I hear you cry. "Jirachi in Pokemon Pinball?" Yes, it's true. Just like Mew in the original version, Jirachi is here so you can boast to all your friends that you caught it. It's available every time in the Slots when you're in Ancient Ruins on the map. After you activate the Slots and get Jirachi, you have to hit it 3 times. It's a bit like Rayquaza because it floats up and down and you can only hit it when it's on the ground. It unleashes no attack as far as I know and there are about 20 seconds in which to catch it. You should be able to catch it unless you CANNOT AIM THE BALL whatsoever.