The Greklovick levels are wonderful, very expansive with a lot of lovely details. The house-boss was simple, but fun.
I think you should add fiddling with the hands for this stationary animation, peak cuteness.
You gotta make a better explosion effect, there are free packs with frames you can use. It does not fit the rest of your style. Talking about the bomb one.
The Greklovick endboss is a nice touch but the gun sound effects are atrocious, they need to go. The actually are hurting my ears.
Going to go to bed soon, will cover the rest of the levels tomorrow. As always, really enjoy your work. These big expansive areas with lots of details to discover are wonderful.