Just finished it, the visual style attracted me since I love the look of the gameboy. I've got some mixed opinions on it though, so don't take these criticisms badly.
The good: The graphical style, presentation and music are all great. I love games that show and don't tell, just drop you into a setting that you don't know where it's going to go next. That's what I got here when I started, some dreamy state that could lead to anything. Also you had a ton of levels, which is great as most ludum dare games are often pretty short. Also the egg recall mechanic was really good. I was surprised at how well it worked.
The bad:
I did get stuck a good chunk of times, usually when the egg and the player had to occupy the same space in an upper platform and I'd recall it into myself. Thankfully you've got a restart button so its no biggie.
Although you had a ton of levels, some were more well thought out than others. I do appreciate that you employed the 'show off new mechanic' before each new segment, but the levels themselves weren't all quite as interesting beyond the initial mechanic introductions. I think the best ones were a few of the switch and conveyor levels with the button blocks. Also the falling platform sections are always fun, though the girl isn't much of a jumper as it doesn't seem to be the game's focus.
There was a lot of recalling the egg upward through one way platforms (for the egg) and I think those sort of levels crowded the game a bit. It often felt like I was repeating stages rather than playing new ones.
All in all, you made this in 48 hours? fantastic job. I'd like to see more gameboy aesthetic games in the future.