Explosions are used a lot in video games and in 3D you can get explosion generator tools. However, if you are creating a 2D cartoon style video game it can be difficult as they are hard to animate and not very readily available.
My 2D cartoon explosion comes in normal red/yellow, plasma blue and toxic green. As always the editable files for Illustrator (ai), photoshop (psd) and inkscape (svg). There is also PNG files ready to use as well as 3 sprite sheets.
The animations contain 11 frames.
The flaky video below shows the animation (please excuse the bombs as they are used for example purpose only)