Games where the sequel is a different genre

I'm curious about games that have sequels that are a completely different genre. I'm talking about mainline entries, not spin-offs/side stories. I'm also not talking about games that are strictly graphical changes (e.g. the Zelda games went from 2D to 3D when N64 came out but I'd still consider them the same genre).

Examples:

Paper Mario (turn based RPG) > Super Paper Mario (platformer/action RPG)

Legend of Zelda (action adventure) > Zelda II (RPG/platformer)

Early Fallout games (CRPG) > later Fallout games (first person shooter/action RPG)

The Messenger (2D platformer) > Sea of Stars (turn based RPG). I'm not sure about this one; I don't know if these are direct sequels. Have not played Sea of Stars.

What am I missing?