the game is about the moon who wants to kill you with help from his friends
his friends are:

the Sun: summons fire from the outside of the screen to put you in a tight spot

the twin Stars: after a short delay they will come spinning right at you

the Meteor brothers:  two meteors will come falling from the side

Controls:  
A & D to move right and left
space to jump
shift to dash  in the direction you are moving