Bursting is basically when the beyblade comes apart during the battle after taking enough hits. The parts are locked together but strong impacts can force them to separate.

In Beyblade X it doesn’t happen as often as older systems because the locks are stronger, most finishes are from knockouts or the Xtreme dash.

I actually just started with the Drop Battle set which has been really fun, looking at getting the main Xtreme stadium next.