This is the intro movie of the new Mages web browser game Choginga Senkan (it is also called Hyper Galaxy Fleet or Super Galaxy Fleet). This is the Open Beta, that started on the 15th of May!
The game will officially release on the 27th of May.
Here is the link if you want to join in the Open Beta: http://nijiyome.com/app/top/226?en=choginga&et=official_etc You will need to make a Nijiyome account first.
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25px Event 改造宇宙人ホロニア襲来! begins