Really nice level designs.
Through I would advise to avoid system keys (Shift, Ctrl, Alt..) as those are generally used by the system. Eg: By default on windows, if you quickly taps Shift 3x, a popup asks if you want to enable sticky keys. This requiers admin privileges to disable. So... that popup makes the level where I need to quickly get all the red dots impossible so I'll have to give up.
Still GJ, even if I couldn't play all the levels.