"12 locks and keys" is a 2D mobile app tier puzzle game slapped together with the godawful GameMaker Studio video game construction kit, by copy + paste merchants, wow wow Games. All these guys do is take construction kit garbage and asset flips and try scam people into paying them for someone else's work.
In this case it does look like a little work went into filling out the Yoyogames/GameMaker Studio template for a 2D puzzle game... but not much. The game doesn't even work because it doesn't properly register mouseclicks. I guess since wow wow Games don't do any game development and just copy/fill out game templates made by others, it should be no surprise they don't do any software testing either.
To erase any doubt as to the status of this game as basic cash grab shovelware, there's a ridiculous $10 USD price tag, and of course as usual wow wow Games sold keys for this in bulk to DailyIndieGame as soon as it launched.