This is the best take anyone's ever done on the trend of making a mashup of all the main levels. Rather than going through the game linearly, it takes a winding path throughout all the main levels at the time, starting with the beginning of Base After Base (presumably in reference to the original level Ultiate Destruction, both the first level previewed and the planned level using the same song as this level), going through all the most memorable parts of all the main levels, and finishing off with the last ship of Stereo Madness, which I think is probably the best finale possible — it's not too hard, it offers an extra bonus challenge, and it makes it feel more emotional looking back on how far you've come. The styles can clash a little sometimes, especially when a later level is juxtaposed against, say, Polargeist, but that's kinda the nature of the style, and staying true to the levels' styles is a better artistic choice in this case than making it look more modern. I think this is about all that can be said about this level, really.