Run through the space ship with your character and collect as many stars as you can.
This way you can unlock all kinds of medals and achievements.
How far will you be able to get? At the end of each attempt your EXP is added to the meter.
Can you fully level up your character? The higher your characters level, the more damage you can sustain.
You will need it, because the further you get the faster and more difficult these side-scrolling run and dodge levels become.