What videogame sequels you think ended up screwing what was done in the orginal?

[Saeko]

A few who come to my mind :

Langrisser milenium after 1-4

Castlevania lord of shadow 2 after 1

Alundra 2 after 1

Almost every heroes of might & magic since 3 !

Fallout 3-4 is a big let down for me after 1-2.