There are not many happy parts in Evangelion. In 2.0 they added a few, which are a nice addition, like when Shinji pulls Rei out of the Angels core(which gives me the chills every time, which it should do to everyone),but the one I picked is when the get to visit the marine preservation place. The reason being because despite being in horrible time with the end of the world coming, these kids still get a chance to have a little fun and see what other generations got to see.