Etymology of "BLITZER" and "BLITZ = blitz". Darts brand from "BLITZER" It is the appearance of the recording and management application darts score. By those apps, scores of hard darts by simple operation, I can be recorded within the app. ▼ corresponding game. Count up. ▼ and count up. Throw a dart of three 1 round, compete for total points by repeating eight round it.