I loved the demo. The theme is what caught my eye originally (I'm a sucker for pastel colors), but I stayed for the rest. The level design is not too difficult yet challenging enough to keep me engaged (as the levels slowly increased in difficulty).
I did notice a few bugs here and there.
boss fight, sometimes he stops spawning balls, forcing a restart from the checkpoint.
I'm not sure whether this is because of a timer issue (<100 seconds) or because I failed to defeat him quickly.
Also, for some reason, when playing 2-1 for the first time, the
theme played in 2x speed.
One more thing: in 2-4's bonus room, if the player fails to carry the P-switch with them, they can get softlocked by entering the door.
Other than that, I enjoyed playing through TMW, and I would love to see this finished.