Early Access version 52

[TheGoldenBoss128]

@InterAction_studios

Weekly Challenge: 4th and 8th stages now have a chance of being replaced with another type of mission. Weights: Invasion 100, Comet Chase 100, Supernova 100, Meteor Storm 100, Feather Fields 100, Boss Rush 12.5

What the 100&12.5 numbers mean? Is it their appearing percent?