1st mode: Ultimate Showdown
When the player starts the game they have infinite money and automatically level 18. Games may last less but it doesn't give any team an advantage if anyone feeds.
2nd mode: Limitless
Items have no boundaries. For example, You can get 6 rabadons caps and have them with full effect.
3rd mode: Capture the Flag
At the nexus Right click to pick up the flag, it is a buff effect you have to wait for 5 seconds before getting it (The whole map is blanked out except for the shop area and your teammates.)
The point of this is simple, get the flag (consumes one slot in your inventory) and if you die you just drop it, your teammate can grab on to it (4 seconds) or the other team can take it back (3 seconds)