I think one problem is, it doesn't get harder the farther you get, the reason I could rack up the score is because I could, on average, get plus two seconds in less than that time, if you made it so it slowly gave you less extra time than it would be better. It's very simple but it's a good game!
Edit: You could also have a two gamemodes/modifiers: Losing instantly from getting it wrong once and only getting X seconds per question.
I totally agree. Even though I scrapped the difficulty level, I could have still added a more dynamic difficulty like you suggested. I like your ideas. To be honest, my ideas for difficulty levels were pretty basic, so you've given me something to think about. A one hit kill mode sounds neat! Also modifiers or a customizable difficulty setting sounds great. It's something I've seen in other games before and loved, so I don't know why this didn't occur to me!
