Nice game, though the connection (ahem) with the theme is a bit weak, in that the bridges do not need to connect anything (I more often than not made them in mid air to catch a falling character), and the objective is not always to bring all the character together.
The choice of the esc key to bring up the pause menu is unfortunate because in full screen mode in the browser it just goes back to windowed mode, maybe you could bind it to P.
Also in desktop mode I didn't find a way to close the credit screen after beating the last level and had to alt-F4 out of the game.