A little disappointed that the egg didn't explode into a giant yolk mess :D. But what a neet idea to allow the player to literally change their world from a boring black and white to a new environment full of colours!
Definitely should add an objective like only having so much time to get a certain percentage of the world in colour, or maybe race the "black and white being" by undoing their actions through colouring and keeping up with their black and whiting haha.
Also, think of adding a reverb zone so that the "pop" sound doesn't cut itself off.
Overall, had fun playing with this little game and I did enjoy PRAISING THE EGG