How to pass the first level? Which boss treasure box should be given priority? Dragon or bow and arrow? Why is it so difficult to play without a guide?

Just want to die

Only played for an hour

I took all the bows and arrows, giving priority to frequency and speed, as well as glasses, cloaks, anti-collision, x2. Three arrows are enough in the early stage. The damage of bows and arrows selected from the boss treasure chest is x2. Dragons have three stars for direct points. I basically never chose a dragon in the whole process. I always got a three-star dragon from the treasure box at the back.