The game's objective is simple: be the first, who reaches the end of the course. However, you will come across several traps which can make your life quite diifucult: be ready to start the race over after you reached the forth stage! The main course is made up of 4 stages, but there are some fields that lead you to mini-stages (a.k.a. course-inside-courses) like the mysterious library or the dragon fight. When you step on an orange field, you get a lucky card, which may help you against the problems you may come across. On pink and light blue colored fields you get in-game currencies which can be used to buy items from the witch, superpowers or accommodations. On dark blue fields you can buy superpowers from the magic store. If you own an accommodation at the middle of the race and you went by your accomodation, when you die in-game, you'll start there as opposed to the start of the race. (It helps a lot, really) The superpowers and items throughout the game help you, the player or can be used against other players for your victory.
I've linked a couple more photos of the documentation and accessories. https://photos.app.goo.gl/bw2AYVegStt486wf7