I think it's alright

1 nite...eat it.

some ppl leave their pizza in box overnight n eat it cold or heat in microwave or oven n eat the next day* I personally wouldn't....unless i had put it in the fridge overnight..but u should be ok, ive seen many ppl do this n their still alive* u only had pepperoni on it..not like it was chicken or something*

Yes, should be ok

Should be ok as long as they are made hot and not just warm

Getting it good and hot in a microwave should solve all problems. IF there are any bacteria on it, a good blast of microwaves should boil them to death. Enjoy! People really do get far too worried about this.

you can either microwave it, or eat it cold. Either way.. you'll be fine.

I'd eat it. Cheese isn't going to spoil overnight, neither are tomato sauce or other vegetables, neither is cured meat like pepperoni.

Do it.

Go for it. There isn't too much stuff on a pizza that will easily spoil. Next time, separate two or three slices at a time and stack them on a plate to put them in the fridge or freezer.

The toppings are usually pre-cooked.... It is gross but people do it all of the time