I would start by adding Transformers, and have Celine Dion playing on repeat in every zone.

I would also make it so that you lose experience whenever you speak ingame, and then take all players with Sephiroth variants in their name, and set them on fire.

I would finish by adding a power rangers mode, which would allow you to take orders from "the 12" (Zordon) to go out and save Angel Grove from Rita Repulsa.

There would also be a Gran Turismo mode, with realistic crowd effects.