Well as with most other forms of chess variants, 'blitz' (along with 'bullet/lightning') games really do not pose much difference towards that of the reliance upon tactics, strategy, and opening theory, other than perhaps adding to it; i.e. because as the game 'variant' [often] has to do more about beating the clock, one can often afford then to play the suspect moves/replies at their disposal in any phase of the game's play. Therefore, [I believe] the expenditure of time/energy towards [deeply] analysing such ['blitz'] games may not only be but a trivial matter [for time's sake] to the player[s] in question, but merely adds to the insult for the royal game's true understanding - i.e. that the game of chess was meant to defy time itself.
And that's the way 'I' see it! ...
It's inevitable that you play fast blitz games differently than you might standard games. You often take chances you couldn't calculate in seconds, or make blunders from not looking over the board with caution and you more often than not play for quick tactics rather than for strong positions -- just as your opponent might do the same. This often leads to flawed but interesting, even humorous, games.
In this 3/0 game I played a poor opening, followed up with several mistakes and at least one blunder, none of which my opponent fully exploited. (Blitzy Blunders is the name of a two-way street.) So, after looking over the game to see how I might have played better, I made some observation that I put in the game notes.