I played Bubble Bobble (new mode) at TGS.
It's pretty disappointing really - the top and bottom screens together show half of the level, but it scrolls left and right too which means you can't see everything on screen at once. It wouldn't be so bad if the level layout was the same as the original version, but it's not. So I probably won't end up getting this, even though Bubble Bobble is one of my favourite series of all time.