My son started laughing as soon as the first kaiju appeared, and strangely got "scared" during the middle of the movie, not during a scary flashback, but after that when everyone was just talking to each other. Laughter returned as soon as robots started punching monsters in the face again.
When we got home, out came the legos:
|Father and Son collaborative effort|
|Solo effort by my son, cut off by bed time|