It's like they don't want to get recognised for things they do awesomely...
Ex:
- A Devilite level: random office space that spawns a group of devilites with an interactable book that shows: "Fiend self-help book" "How to draw infernal diagrams" lol <3 :) (wonder when that was added)
- Compound levels: awesome traps and trap hallways, new rooms, awesomest-er-est-er-est
- Putting compound levels in missions where appropriate
- And more stuff I haven't found yet (I need to do some Arcade searching)
...Why? Why not give yourself credit where you should give credit for being awesome q.q
/think maybe it's for people like me who randomly play through the game to find lesser-known/unknown gems? Doubt it.
The devilite room is a scenario room. They announced those things, but not directly as they want us to find them personally.