Cute little game and very well thought out in regards to the theme. One of my favorites so far from the C3Jam. I didn't finish the game but I played enough of the levels to feel like there was certainly going to be some fun puzzles.
The only things that annoyed me were:
#1: the level design in regards to collision, you have many corridors only a couple of pixels too narrow to fit two Gogos down at once. And in other places similar looking corridors were quite happy to fit two through at once, in a few cases in the former involved getting a Gogo stuck at the wrong time causing me to lose a level.
#2 The music was a bit minimalistic and on/off. Maybe that suits some people, but I'd rather have a toggle-able constant backing track. Still only a minor complaint and it's coming from someone experienced at making music. It has no real negative effect on the game.
Other than those points I consider it a great entry for the jam. Good luck :)