I really loved the presentation here-- all the art/audio feels very cohesive, and that adds a lot to the vibe. A WarioWare-like is also pretty inspired in terms of the theme
Just a couple bits of feedback-- I'd really love a "casual mode" or something where, after losing all your hearts, you could choose to continue in an unofficial run just to see all the games. Additionally it'd be cool if the game prioritized microgames you hadn't seen before on subsequent runs.