(Posting this to get caught up after the hack)Maxima wasn’t really sure how to deal with Kaboomoid. He/it is a largely intangible explosion, and Max’s powers don’t exactly work well to directly make less explosions. If that’s the case, then depriving him of oxygen wouldn’t have any effect on him. Nor would “blowing him up” as that would probably feed his power or heal him, and that assumes he could even be damaged in the traditional sense. Since you might be wondering, Niagara Falls is about 165 feet high, so Babezilla obviously doesn’t have to be full sized.