Press the "Custom" button, type something that isn't 0-20, and instead of typing out what you're supposed to, there are plenty of secret codes you can put in. The only ones I will put here is "freddy_fazbear",  "fun_fact", and "save_clear". There is a total of 6 I think and some are kinda cool.

Speaking of fun fact, there is a total of 2377 blocks of code! Anyways, I hope you all are enjoying it and maybe I'll work on a sequel? I have a lot of ideas :)