Can i extend the 2 hour pass to a day?

If you speak with them they will adjust depending on the availability of spots and how busy thr attraction is

Yes

Yes they have an all day pass. You can check out the price online. Totally worth it - i did all day pass and i dont regret it in the least. After ywo hours you will not have had a chance to experience all of the games. I was there myself for like 8 including having left for lunch. Only left since my wife was bored hahah