What Are 'i Points' in Wii Sports Resort? (They Don't Exist – It's Information Points)

There are no "i points" in Wii Sports Resort.

Possible Confusion

• Wii Points: Discontinued (2019) virtual currency for Wii Shop Channel. Never used inside Wii Sports Resort.
• Skill Points / Stars: Each sport awards a skill rating (★ to ★★★★★) and stamps for milestones.
• Island Flyover (Plane): Collect i-Points? No—you collect Information Points (i) by flying over landmarks. They unlock balloon colors and a map legend, but have no currency function.

Island Flyover "i" Markers

In the Island Flyover activity (Plane), there are 80 Information Points (marked "i") scattered across Wuhu Island. Finding them all unlocks the Super Plane (red) and a complete map. This is likely what you mean.