Y'know, I have to agree, I kinda forgotten about the stage since it was one of the first ones, and I am not even sure how I got it, but by level 6 it becomes an almost do or die situation really quickly.
It's a match 4 but the fact that it has an extra variation and level, combined with the huge orbs, on the higher levels both the bottom and the top feel like death traps, as clearing too much, despite being the goal to get bonus points, can suddenly mean a lost.
I even tried to like, stay in the middle? But then I get a random "lucky" chain and suddenly the drop from the top from clearing too much suddenly becomes a "You better make every shot count" deal, haha. Unless there is some strat to it.