In Yoshi Demo, players navigate through levels using Yoshi, employing classic platforming mechanics such as jumping, egg throwing, and collecting items. The demo features two versions, with the first being silent and the second incorporating music and sound effects.

The storyline of Yoshi Demo is minimal, primarily focusing on Yoshi's journey through vibrant environments reminiscent of Yoshi's Story, without a defined narrative arc.

Yoshi Demo stands out with its unique status as a tech demo, providing insight into early GBA development while showcasing the potential for a Yoshi game on the platform, despite never being officially released.