Regarding sprites size, RPG Maker requires them to be scaled :
- package_content:
- arrow/ <= arrow sprite (scale x1)
- dummy/ <= dummy sprites (scale x1)
- hero/ <= hero sprites (scale x1)
- rpgmaker/
- MV/ <= RPGMaker MV sprites (scale x3)
- MZ/ <= RPGMaker MZ sprites (scale x3)
- VXace/ <= RPGMaker VXace sprites (scale x2)
If you are using Godot, GameMaker or Unity, you better use the scale x1 folders.
Regarding RPG Maker Action RPG system :
- Beware, making RPG Maker Action RPG is not beginner friendly and require plugin and possibly image editing, but you can start here : RPG Maker Action Combat - RPG Maker MZ Plugin by Sang Hendrix (just an example of how it can work, I'm not affiliated with Sang Hendrix)
Good luck !