Because it relies on early 2000s camera technology (320x240 resolution), the controls can be "imprecise".
The game thrives on simple, high-energy movements like waving arms, jumping, and dodging. You’ll find everything from boxing and weightlifting to more eccentric challenges like sack racing. EyeToy Play Sports
As a solo experience, the game can feel frustrating. Critics from Pocket-lint noted that the menu system frequently asks for player counts before every mini-game, which breaks the flow for a single user. Technical Performance Because it relies on early 2000s camera technology
“The minigames themselves are pretty fun... but they all seem pretty similar to games featured in previous EyeToy Play titles, so there's not much new to call home about.” Kikizo · 19 years ago As a solo experience, the game can feel frustrating
“As a team game is where EyeToy games really come alive... if someone has gone to the garage to get yet more beers you can play the next game without them.” Pocket-lint · 19 years ago PS2 Review: EyeToy: Play Sports - Kikizo Archives
With 101 games, quantity is the priority. However, many games feel similar to those in previous EyeToy Play titles, leading to a sense of "more of the same" for series veterans.
Like most EyeToy games, you need a brightly lit room to avoid "dubious" motion tracking.