I am really, really loving this. But I got stuck in level 2 and I don't have a lot of time right now, so I have to get back to it. I feel I might need to do something with jumping but I have no idea what!
In some places a bit more feedback for the player would be great. I like how the colors are used for that, but sometimes I have Becky interact with green stuff and just nothing happens, without the game showing any indication about why.
Also, come to think of it, using colors for telling the players something might not be great for accessibility.