You seem to be trying to say that each element in itself doesn't invoke the illegal drug use metaphor. Even if that were the case, my argument is that the three

You seem to be trying to say that each element in itself doesn't invoke the illegal drug use metaphor. Even if that were the case, my argument is that the three pieces bolster work together. Just like if I named a game "Alcohol" and the logo was a glass with some liquid in it, and the tagline was "Have a good time". Individually none of those would necessarily be promoting drinking alcohol. After all, alcohol has uses for cleaning, and the glass is just a glass, and "Drink in the fun" is just describing what it's like playing the game. But if you put them together, they unequivocally do. As for there being legitimate uses of amphetamines, I'm not saying there aren't (I'm well aware of these uses, personally). That doesn't mean the off-label uses are legal. AFAIK, at least in the US, using amphetamines solely to "keep awake" is an illegal usage, and the tagline is referring specifically to that.