harder levels mode

@Elsa i mean after a press of a button, in alternate harder version levels that are normal, become hard (aka it bumps up the difficulty of levels by 1 with the press of a button) (maybe we can reuse dreamworld!)

@Elsa yes, but, it can be like dreamworld but all levels are hard, harder, nightmarishly hard, and then another level of hard,

so a chart should look like this: