Oh my gosh, I was not aware of the boss update!
There are some adjustments to upgrades this time around, and if you don't plan ahead, it's going to be a painful development if you don't upgrade.
I tried to fight with just enough offensive upgrades + My Favourite Upgrade coffee based on my memory of last time and it didn't work and I got hit multiple times!
In the end, the system didn't give me any coffee options at all, as if to say, "Forget that obsession," so I upgraded my Explosion system and was able to get by just in time.
It was a lot of fun! Thank you so much!