1. Ember used to be a guy with Phoenix helmet as a default.
2. There is an easter egg with dead warframe.
3. Big white square on Jackals arena floor is an elevator removed in Update 6.
4. Nyx has Excaliburs body (with some extra attachments :3).
5. Hostage used to shoot.
6. Warframes do not always know how to wall run.
7. Grineer and Corpus has their own alphabet.
8. There used to be a secondary objective where you had to find a keypass.
9. Lotus is voiced by Rebecca Ford, Warframe Community Manager.
10. Grineer looks all the same because they're clones.
11. The guy from Cryopod is how hostage used to look like.
12. Tyl Regors mask is upside down.
13. You can't shoot with bows while ziplining.
14. Shockwave MOA was green once due to devs mistake.