You can either hit "Submit" to reload the quiz with your changed options immediately, or hit "Close" to have the changes applied to the next question.
Tango Quick is a simple multiple-choice quiz on the meanings and readings of Japanese vocabulary. It does not have any Leitner-like SRS system behind it, nor does it have "select how correct you were" buttons or clever mnemonics. It does, however, let you select a level (higher levels include words from the lower levels) and it allows for you to pick whether you get the question word alone or in the context of a sentence. I designed it for my own use since I was not satisfied with other flashcard offerings. Feel free to use it as well.
Tip: After a correct answer, instead of hitting "Next", you can also hit enter on your keyboard to go to the next question.