And they would be smart to disregard it as it is clearly satire... OR IS IT?

We have similar ideas with some key differences;
1- I would capture the gods and demons in the Pokeballs and release them into say, a shopping mall.

2- In lieu of a dagger, I would find alien blueprints and build a Crucible in space. On said Crucible an AI will appear and will strangely take the form of a child you saw once in your life. This Crucible will give you three clear cut choices (destroy gods running rampant in mall, become one of the gods or allow the gods to continue rampage).

3- Learn the language of the dragons and shout people to death.

4- Rig Megaton to blow. Negative karma, but I'll gain it back by giving money to the church in Rivet City.

5- Use my 1337 skills from COD to master real life weapons, because we all know COD is a combat simulator. Really, I'm wondering why the military doesn't use it, it worked out for Anders Brevik.

The best way to do a video game style massacre would be with Kirby.