Finally, a EULA that is written in plain English.

There's definitely a lot of meta humor in the original.

Undertale does have a lot of humor. There's a lot of wordplay (of the sort that would make the game hard to translate), for example.

After Deltarune Q&A from Toby Fox:

http://www.twitlonger.com/show/n_1sqn3p9

Answers a lot of questions, some I didn't want answered in the way they were as they've made me feel more disconnected and less enthusiastic about whatever the full game will be, but there you go.

I'm not surprised: there was a guy who made undertale work for android (but only if you had a legal copy of the game) to help garner support to convince Toby Fox to port it, but he was like "meh." I don't think he's really into this stuff at all, and just does it as a gag and doesn't understand why people liked undertale.

Ironically, he talked about how no programming was done on the game, when the original undertale was made in gamemaker...
There's a plane late in the game called the "Tsunderplane," the trick to sparing it is to get close, but not too close to it when it flies by. It secretly likes you, but it doesn't want you to know, baka.