yea this game is tough i've been playing it for a little here and there, but today, i decided i would try and attempt to get to the end. but after about 5 hours i quit. i'm on the end of chapter 6.
The bomb is great in my opinion. This games (especially this stage) uses full use of the wiimote. as the story goes on it def gets tougher.
*******Possible stage spoiler below*******
I found this suggestion guide online. i've used it once. when i attempted this procedure about 2 times and towards the end i couldn't figured there was NO way to get past it. but this guide def. told me what i was doing wrong. (hint: not to use HT till the end)
http://faqs.ign.com/articles/747/747549p1.html