Just launch Game.exe and you're in

Check the "assets maps" folder if you want a better idea of the available assets and their numbers

Some tips:
- arrow keys (not WASD) + space bar or Enter to navigate
- hold Shift for speeding up the cursor
- Esc or X for opening the menu
- Alt+Enter for fullscreen (but keep in mind that it makes the image blurrier and no longer pixelated)

If you don't know much about the color models and are kinda confused by them, HSL is your safe bet. H stands for Hue (the colors of the rainbow), S is Saturation of said color (from gray to saturated) and L is Lightness

RPGMaker VX Ace only works with a gamepad / keyboard, so the lack of mouse controls and weird assigned keys choices is nothing I can do about, sorry

Same goes for running this on mobile / browser / linux / mac / etc, unfortunately I'm limited by what I know and what RPGMaker itself is capable of. I'm no professional programmer, I just did what I could for a small pet project