So a lot of the new areas have had a number of 'thin' passage ways in them. Well, this irks me personally because it makes Quick-Whack take that much longer.

However, there are glitches that come with it as well:

If a bush spawn spot is in the middle of one of those thin passages, it will block the way. This is really annoying because not every spawn-able object can be whacked (and if you're out of energy then, well, you're stuck).

I was once unable to get through a room because a Giant blocked my path near the entrance to the room, I had to go back the way I came and try again.

When I was Quick-Whacking in the Strange Abyss, the chest in the bottom-left blocks me from reaching the bushes in the corner behind it. They still get whacked, it just happens by magic without me actually reaching them. :P

http://i73.photobucket.com/albums/i220/Xanofar/Bush%20Whacker/strangeabyss-treasurechestblock.png