In addition to a brief mention of a release date at their press conference yesterday, Nintendo is showing off a brand new four-level demo of Super Mario Galaxy at this year's E3. A quick recap of the levels and new stuff available this time around. Warning: Potential spoilers ahead.
Stage 1: The basic training level shows you how to jump around some small grass- and dirt-covered planets. Falling into a pit doesn't necessarily kill you -- sometimes you just fall to the other side of the planet. Be careful of black holes, though -- fall into ones of those and it's "too bad" and a restart from the same point.
The boss of the first demo level actually takes place on the inner edge of a giant sphere. Mario has to avoid moving electrical conduits and jump on panels to shut down a giant generator. A nice, simple introduction.
Stage 2: A little tougher than the first stage -- there are more enemies this time around. Luckily, there are also plenty of stars to collect with the pointer. Once you have some stars, a quick point and a flick of the B button can fire them to stun or knock over enemies. A second player can even pick up another remote and help with the shooting.