The Repair

Unalerted by the commotion, it took much longer to find out what had happened...

Timelines shifting with the use of the episodic portals, the "Flash Door"..? Another Mario? Multiverse Cores??? The forbidden universe was TAMPERED?!? Where'd all this come from? Then he noticed an emblem: The Otherworld. Can't have this happen again. And so, a new set of actions were to be done and enforced.

Firstly, with a wave of a hand, the episodic portals had ascended up into the skies of the multiverse hub alongside the Forbidden Universe. He only kept it there for archival sake, anyway. This would also prevent the Otherworld from slipping back in from death.

Secondly, the removal of the Multiverse Cores. What good was this for when the only guy who could safely run this place was him?

Next, keep an eye on the place more. Not to even mention the new Luigi guy who appeared recently. If anything happens, he shall be the first to know.

Lastly, intervene. Let the show go on, but if it becomes his problem.. he will take it into his own hands.

...

Rumour has it that one's still out there.
... meh, what's he gonna do now?