I found this out while playing just a couple of minutes ago. OK, first, you have to do this at Mute City, so go there. Then, get a motion senser bomb. Then lay the bomb down on the platform, and when it goes into the road, it looks like its gone! But if you step on the spot, it'll blow up! So its still there, you just can't see it.
When I saw it, I went to training mode to see if it did in any other places. Some places it works, and some places it doesn't. ;)
Anyone care? lol
Yeah that's pretty cool. I wonder if it works on any other stages.
You know this would be better suited on the Smash Board right?