>>149840805
Jim Carrey is notoriously difficult to get for sequels. It's why a lot of his most famous roles ended up with shitty sequels without him. However he seems to genuinely enjoy playing Robotnick and I guess there's not really many Jim Carrey type movies coming out anymore.

People weren't expecting him to return for Sonic 2 or 3 and he still did. Sometimes actors are weird like that. Like how Bill Murrey refused to do a full Ghostbusters sequel because it wasn't up to his standards yet he still made those shitty Garfield movies.