I once played a 2D RPG which I got stuck in at a point, because I filled all save slots right before getting to a blocking battle, for which I ended up not having enough weapons^[I had recently bought a weapon I then got another one of, just before the battle (as a gift for the battle), but was useless, because only 1 of the player characters could equip that] and then just falling 1 or 2 hits short of managing to pass it.
I have been meaning to retry it from the start (it was a freeware, I think) but I can't recall the rather peculiar name of it. I has been ~ 20 years.
The only recreational use of N~2~O I know of is to add a tank of it in a car and pipe it into the fuel mixture.
And even that seems kinda snake-oily to me.