My issue with Undertale is not the game itself but it makes kids think about stuff that they will look further online and probably get to wrong paths. This game changed my son in a way I don’t like it. He never played violent games – he owns Nintendo Wii U and play most Mario games – he is not a fan of shooting games or zombies or anything like that. He used to love Minecraft and met Undertale I don’t know how. The thing is, after he bought this game he became obsessed with it and its characters. He lost interest in going out, he does not care about playing with friends, his grades went to A to D, he started to lie to my face about what is doing online…. and everytime I catch him lying is Undertale related. Be aware parents that with the game comes curiosity about a lot of things that kids, teens are not ready to. So they go online and there is a lot of crazyness around this game, innapropriate content, videos, chats… I regret letting him buy this and I’m very worried to the point I will look for professional help.