RPG Maker XP, that is.
I recommend using any tileset as a placeholder, than make the decision later. At the best, you can make your own sprites, but it is hard to do so without proper art // pixel art knowledge.
I just installed Arc Engine on a VXA-OS project, but so far, VXA-OS is interfering with the platform movement of Arc Engine. It just uses the default movement. Is there any way to change this?
Ah, how will you make it? I have never seen a turn based battle system in Intersect. I would usually assume you would use eventing or scripting in some way in this case.