I think I found a little speedtrick in Gathering Hall. When you use the Morph Ball cannon, before you hit the plate, jam the X button like mad and you'll unmorph before you hit it. Looks cool and saves like 3 seconds...
>_>
Dunno if this works everywhere, I'll try as soon as I use the next one.
>_>
Dunno if this works everywhere, I'll try as soon as I use the next one.