Dodge the obstacles. Don't touch the gaster blaster at all, even when it's charging up or when it's fading away. the rocks fall faster the higher score. when your score gets to 3000, then they won't go any faster, but they get pretty difficult.
Credit to @TrentonTNT for the idea from his project Stick-man dodge And credit to whoever made the song that sounds a bit like megalovania And credit to toby fox for the gaster blasters Try not to get cornered!