A HUD (Head Up Display), which is an interface overlaying the screen to display parameters and other information, always adds aesthetics to a game. In fact, many SNES games have HUDs. One in particular comes to mind: Zelda. The hearts container at the top of the screen is a HUD.
There is an online WYSIWYG HUD generator for RMVXA, where you can create your own by dragging and dropping elements into place to create one of your own.
There are only four options at present – Rectangle, Gradient Rectangle, Image and Text – but I’m sure more will be added at a later date. Notwithstanding, each has its own set of sub-options, including HP/Max HP and MP/Max MP, making it quite customisable.
Once you’ve created your HUD you can then click “Generate Script” and you’ll be able to copy and paste the script into your game. You can also Export/Import your creations for later use and modification.