I spent the first minute clicking around with the mouse until the attempt upon the arrow keys and finaly after the spacebar the asteriod aspect kicked in and a sence ahaaaa.

I shall play some more later, though the blobing of the asteroids/blobs could perhaps also merge colour palletes as well and in that also provide some subliminal education. Maybe even volumetricaly factor in the colour merging.

I might also add that it can be more fun to learn how to play the game than just reading a manual, so in that I like it even more.

Oh and the source, that there is how I'll learn coffeescript, thank you.

Yes, it could be a lot more obvious.

In Osmos (a similar game) the coloring of the bubbles makes it much easier to distinguish which bubbles are edible and which are dangerous. I think the this rendition could be improved by getting new colors, and maybe saving red for dangerous things, and not the player :)

The ones with blue border you can eat :)