What do you think about the Obsolete anime? It's really cool and well realized, it explores how these alien mechs would actually be used in different circumstances. I really liked the anti-imperialists, they were so cool and I like their mech designs. I just wish that they were the main characters, they have so much more going on with their idea of the mechs being able to topple the west and level the playing field, rather than boring Amerikkkan area 51 marines which the show obviously focuses on.