From top to bottom? (just a quick basic overview)
Molten Cheese text, Soft body with perhaps melt deformer with fallof and lazy man booleans for the holes.
The Letter O, Sweeps (with rotation) and a sweeped Helix.
Yolo Slide, Sweeped Text, Cylinders for the Pillars, Cylinders and Cubes for the holders, cloned stair steps, cloned railing and some stock people.
Fun Games, google Mylar Balloons (soft body), Boolean for & in a Cube, Clone cubes over the letter G, Model a Horse, Sweep the Roller coaster, don't know about the M, (just use a texture), Moddel that E and put it in a Subdivision Surface, the bottem of the S are sliced cylinders.
A LOT of different techniques and keep in mind the cool look comes from lightning background and textures.
But yes, the basics, primitives (cubes cylinders) sweeps and extrudes.