Thanks for all the comments and suggest! This is my first time making a game and joining in the jam. And you guys are so nice and your suggests are really helpful. As for updates, I have already finish it. But I can't upload during the game jam. Here is what I have done:
1.Now you can view the level before you start.
2.As for the pace, I let the time run two time faster when you start. So that might handle the problem.(But the animation will also run two time faster. )
Last, if you guys have any resources for sound and music. Please let me know.(Better if it's two time slower version.)