- For this scenario, we rewind back to when Goku had given Frieza some energy after the Galactic Emperor was...well, I'm sure you can make some puns about what happened to him; DBZA Goku certainly did.
In any case, as Frieza watches Goku fly away after insulting Goku (this time making Goku angrier than before as he also insults Gohan and Krillin) before then attempting his 'Last Emperor' attack. Like before, Goku sees this and - with the classic line "YOU FOOL!" - responds with an 'Angry Kamehameha'.
Due to been angrier this time thanks to Frieza's choice of words, Goku's Angry Kamehameha has more power behind it and - while still not killing Frieza - it deals more damage to the already wounded Tyrant than in the original.
- The consequence of this is that when Frieza is caught up in Namek's explosion, he in turn takes even more damage. While he will ultimately survive this still - despite having half of his face blown off - the damage this time is revealed to be more severe as he is recovered by King Cold and rebuilt as "Mecha-Frieza". Upon awakening, this damage is revealed as he doesn't recognize his surroundings, can't tell if King Cold is truly his father and is unable to even recall his name or the events that led to his mutilated state.
Put simply, Frieza's memory is impaired (and for the sake of this "What-if?", the memory loss is permanent) - meaning he can't remember the name of the "Super Saiyan" who he fought or the planet he was from, let alone most of his own past. As a consequence of this, Frieza simply telling his Dad which direction to go so he can get revenge is no longer on the table here - so no invasion of Earth.
(This in turn is likely going to confuse Future Trunks when he shows up and the invasion his mum warned him about never shows up).
- With this alteration, how do you think the DBZ (and possibly DBS) timeline would change?
: Would Frieza - despite not remembering his past - continue to live and re-learn what he needs to become the Empreror again; maybe training/upgrading himself to grow stronger and prevent what happened repeating itself?
: Would Frieza's fresh perspective on his life promote a different change, with even the possibility of him becoming a good guy or anti-hero/anti-villain?
: Would King Cold dispose of/attempt to dispose Frieza since he's no longer fit to rule; instead beginning work on a new “replacement” to take over his Empire and possibly instigating a 'civil war' if Frieza survives the attempt on his life?
: Would something else entirely happen?
Curious to see what you guys think.