Delete: Massive Damage

Unless this page exists solely for the concept and no one adds games to it, it feels unnecessary to keep it as there's already a Weak Spot page and a Critical Hit page.

Aw, come on!

I think the difference here is that "Massive Damage" is a meme rather than an actual game mechanic concept. Its appearance in as of right now 15 games (I'm sure there are more) I think warrants its own page.

Yes, but as a meme this only concerns 1 game, namely Genji: Days of the Blade. Other games are irrelevant in this regard.
That's my opinion anyway.

"Massive Damage" refers to either a critical hit, or exploiting a weak point as demonstrated in the E3 2006 Sony press conference. The latter is already documented in detail on the Giant Enemy Crab page, with a mention on the Meme Origin page. Someone might want to make a mention of it in the Genji: Days of the Blade page, but it does not warrant another page.

I'd go so far as saying that the staff don't want it either. Three days ago I created a Real-Time Weapon Change page, which I actually intended to be used for all games that make use of that feature. Despite my intent, it was quickly deleted.