First off I mean the arenas in the gates and not the PVP coliseum.

After playing many arenas maps I've noticed that, for the most part, they are nearly the same every single time. I would like it if arenas were more diverse. There's a couple ways to go about this that I can think of.

1) You could make the existing arenas have different monsters and not just gremlins/trees/gunpuppies all the time.

2) You could create arenas for other colors and not make arenas exclusive to red.

With 1 I don't think you'd need to change anything outside of the arenas themselves. Red would still make arenas. For number 2 though you would need to tweak the system to allow for colors like green, purple, etc to be able to make arenas also. Now there are a couple ways I can think of to go about making it so that different colors make arenas without there being arenas everywhere.

1) Make it so arenas only have a chance to be made when making the gate (as opposed to there seemingly always being an arena like with red). This will make it so there aren't too many arenas (which may or may not be good depending on your opinion).

2) Make it so that if a floor has red and a different color then arenas can spawn for that different color. For instance if there's a red/green gate then some of the red arenas (depending on the percentage of red to green) would instead be green arenas. This would make it so that red is still considered the "arena color" but that you can manipulate it to turn it into other colored arenas.

What I think I would prefer would be to have number 2 and number 2. Make it so that arenas are relatively the same, but make it so you can make different colored arenas. The reason I prefer 2/2 over 2/1 is that then it would be difficult to try to purposely make arenas as it would be up to lady luck (and she tends to not like me).

Oh and an example of a green arena would be an arena with like chromas, wolvers, slimes, constructs, poison zombies. An example of a purple arena would be one with like slag guards, zombies, fiends, constructs. Not sure what would be in yellow or blue.