This was really cool! A pretty original premise, and a nice variety of fresh gameplay. And although the challenges keep changing, the controls are always intuitive. Props for that.
Minor gripe: In Memory 2, note that you use pixel graphics in inconsistent resolutions... that is always a bit jarring to me.
Opinion: Easy Mode should be the default.
A real pity that 60% of the content is currently inaccessible. Of course, I know how last-minute bugs can find their way into code in jam crunch time. :)