Practice it...guides on YT and reading up on the wiki will arm you with good info. But the only way to beat the arcades is to go to war with them Prairie king took me a couple of weeks . Junimo Kart took me a month of tries. when I started playing them they seemed impossible but they are beatable .. unfortunately it does take a lot of luck and not just skill. the skill will come with a week or so of a few tries each day. the luck of getting the drops that help a lot will happen at random. but even with the random chance a few days will help you with them skills those first few levels get easier and easier. the bosses can be easy certain levels have solid strats. Practice it ... Practice don't make perfect, But it makes better and better is good enough to beat them arcade games, I promise you If I can beat it you can beat it just takes some grinding can be a bit maddening at times but it makes it all the more rewarding when you beat it .. best of luck:)
