Ingame stamp description:
Secret Strike: Word is, there's a somewhat unusual way to get a strike. They say it has something to do with the gutter guards...
Strategy:
What I do is go all the way left and rotate the tiniest bit more left, and then throw the ball straight. Seems pretty consistent.
Difficulty: 2/5
Wii Sports Resort All Stamps Playlist:
• Wii Sports Resort (Wii) | All Stamps