I made two compositions to create this. One for the flames and then one for the text and image. For the flames I added keyframes to enable rotation as they move across the screen. The position was also altered  to move them from one side of the stage to the other. Happy with one flame, I duplicated it and placed it in the opposite corner.

'Bowser' and 'Koopa' are two seperate text layers. As the flames roll in 'Bowser' grows in size from small to large with some keyframes added to make it look like it's bouncing. Motion blur was also added. The same method was used for 'Koopa'.

Wondering how I could make this composition a little better I found an image of Bowser online. As my theme is 16 bit Mario I brought this image into After Effects and added a mosaic effect to it to pixelate the image. To keep with my previous ideas I have Bowser growing out from the centre of the screen, again with some keyframes to give a bounce effect along with some motion blur.
Bowser Koopa Updated
Published:

Bowser Koopa Updated

Bowser Koopa.

Published: