1st "Unreal" from the Unreal franchise of games on PC/Xbox.
This one was kind of complicated to make, but basically an arena to fight yourselves. All you use is a bow and you get to choose between some characters like: Human/Alien/Robot/Juggernaut
Has some of the original weapons of the game including: Assault Rifle, BioRifle, Link Gun, Shock Rifle, Flak Cannon, Minigun, and Rocket Launcher.
You also have the ability to teleport to hard to reach areas of the map via enderpearls.
There are health packs and ammo that appears on the map, you can also choose to have enemies spawn in different zones while you play to make it harder. I should get a video soon.
2nd is "King of The Hill"
Is a fun little game where you try to be on top of the tower to win. You play this one on Peaceful because you lay down a bunch of TNT and on Peaceful, the TNT will push you around and not kill you. So everyone is putting TNT everywhere and flying off the stage and such! The hard part is that that the bottom platform (there are 2) is breakable by TNT so if you can't get to the top, you Lose!! The spawn places are on the 2nd platform too and with all the TNT flying everywhere, if your bed blows up you also lose