Well, I use a modded 3DS, but I think its fair if you literally can't own a game anymore due to it not being sold. However, it's also fair, in my opinion at least, if you don't have the money or console to buy the game. If you do this however I would recommend buying it later on to show your support for the software. I mean, we can't forget that Toby himself used a pirated copy of FL studio for Undertale, so idk do what you want effectively.