Chou Super Robot Wars Æ (超スーパーロボット大戦Æ Chō Supā Robotto Taisen Æ, lit. Ultra Super Robot Wars AE) is a crossover mecha tactical role-playing co-developed by Banpresto and Monolith Soft and published by Bandai Namco Entertainment for the Nintendo Switch in Japan on June 1, 2020 and in Asian territories on December 15, 2020 as part of 65th anniversary of Bandai Namco.

The Æ in the title stands for Æon (also spelled as either Aeon or Eon) and the game's catchphrase is “The great war of giants of metal, transcending through eons” (時代に超越する、金属の巨人達の戦 Ion ni chōetsu suru, kinzoku no kyojin-tachi no ikusa).

Here is another guessing game: Can you list the characters/mecha in the poster as many as you can in the comments below, except for Optimus Prime and Unicron since they're pretty obvious? What is this poster based on?I'll reveal the answers here three weeks later.

The following characters in the poster are:
1. Unicron (Transformers)
2. Mothra (Godzilla franchise)
3. Optimus Prime (Transformers Micron Legend/Armada)
4. Gurren Lagann (Tengen Toppa Gurren Lagann)
5. Jet Jaguar (Godzilla franchise)
6. Eva Unit 01 Awakened (Rebuild of Evangelion / Evangelion 2.0: You Can (Not) Advance)
7. Strelitzia (Darling in the FranXX)
8. Omnimon / Omegamon (Digimon Xros Wars)
9. Ultraman Geed (Ultraman franchise)
10. Daizyujin / Megazord (Kyoryu Sentai Zyuranger / Mighty Morphin Power Rangers)
11. Abarenoh / Thundersaurus Megazord (Bakuryuu Sentai Abaranger / Power Rangers: Dino Thunder)
12. Mazinkaiser (Mazinger franchise)
13. Gundam 00 Qan T (Mobile Suit Gundam 00 the Movie: A Wakening of the Trailblazer)
14. Villkiss (Cross Ange: Rondo of Angel and Dragon)
15. Valvrave I Hito (Valvrave the Liberator)
16. Shin Getter Robo (Getter Robo Armageddon)
17. Strike Freedom Gundam (Mobile Suit Gundam SEED Destiny)
18. Dai-Guard (Dai-Guard)
19. Combattler V (Chōdenji Robo Combattler V)
20. Ξ (Xi) Gundam (Mobile Suit Gundam: Hathaway's Flash)
21. KG-6 Sleipnir (Aldnoah.Zero)
22. Cybuster (Super Robot Wars OG Saga: Masou Kishin - Lord of Elemental)
23. Buster Machine 7 (Aim for the Top! 2 - Diebuster)
24. Complete / Perfect Zygarde (Pokemon XYZ)
25. Nirvash type Zero (Eureka Seven)
26. ARX-8 Laevatein (Full Metal Panic! Light Novels)
27. Black Sarena (Martian Successor Nadesico: The Motion Picture - Prince of Darkness)
28. Danguard Ace (Planetary Robo Danguard Ace)
29. Voltes V (Chōdenji Machine Voltes V)
30. Gunbuster (Aim for the Top! - Gunbuster)
31. Shinkirō (Code Geass: Lelouch of the Rebellion)
32. Tsugumori (Knights of Sidonia)
33. Might Gaine (The Brave Express Might Gaine)
34. Gaogaigar (The King of Braves Gaogaigar)
35. Zambot 3 (Super Machine Zambot 3)

I could've added a lot more but I don't want to cram a lot in these limited spaces of this poster.

More about the game can be found here: gameideas.wikia.com/wiki/Chou_…

Optimus Prime, Unicron and Transformers belong to © hasbroplz
Super Robot Wars belongs to © NamcoBandaiplz created by Banpresto.
All of the characters in this poster belong to © their respective owners.