Prevent
Prevention
If there is a building in the direction you want to go it will prevent you from going any further. Like, come on kid, you think you can just walk right through a building? Don't make me laugh!
ぼう
ふせ
None
The building is preventing you from going the right direction, so you pull a bowling (ぼう) ball out of your bag, aim, and bowl the building over. The building, and all the ones around it, go tumbling down. But now the rubble is preventing you from going further.
An update is needed before you can continue but you have more than one WaniKani tab open.
Finish up what ever you are doing on the other tab(s), then close them to continue.
The update will complete automatically once the other tab(s) are closed.