Needs some help

So, Im good enough at this game because Ive had enough practice that I can do it without loosing lives… but how do I get to the universe run? I always play challenge mode, instead of practice because its more fun for me… every time I get on the spaceship, it says that challenge mode is my only escape… do I have to buy a separate game or something? Its annoying, thats all. Otherwise, the game is good

Wattpadanian about OvenBreak Infinity, v1.21