Look up "MV Cheat Plugin" and then download it and copy the files into your game folder.
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The plugin is here, there are install and usage instructions listed on that page.
This game doesn't need unpacking so it's an easy install. You just have to make sure that the JS file goes in the right place.
Oh, and I keep a copy of this plugin on-hand because you can use it on basically
any RPGmaker MV game.
Edit: In some games the commands can cause unexpected interactions. (the full-heal command removes status-effects, so in games that have plot-mandated lewd status effects, stripping those can make your game weird. Some games freeze up if you reduce enemy HP to 0 at unexpected times, but reducing it to 1 (which is a prebaked option) is usually much safer.
Currently in Tunnel Escape, i'm reducing enemies to 1hp then hitting them with buckshot over and over to speedrun the endless dungeon.
You can also mess with your stats/variables, and even add items.
Just be careful adding anything you don't recognize, unless you've saved recently.