Touhou Suimusou: Immaterial and Missing Power is the 7.5th installment of the Touhou Project by Team Shanghai Alice's sole member ZUN along with conjunction with Twilight Frontier. It is called "7.5" because the events chronologically take place between Perfect Cherry Blossom (TH07) and Imperishable Night (TH08). It was developed alongside Imperishable Night and released at the following Comiket 67.
The story revolves around a 23 year old unemployed NEET, Makoto Asaka, who is otherwise an "ordinary" citizen of Wakui City living in a rundown apartment. Makoto doesn't have any money but has been skirting the law for some time through tax evasion, abuse of Japan's basic "National Pension System", and odd jobs or "gigs" working under the table, becoming more behind on his fiscal obligations by the day. However, there is another odd phenomenon that has developed in Wakui City that Makoto did not immediately become aware of known as the "New Stalking Law", which grants protection and partial asylum to qualified candidates who have garnered the attention of unscrupulous parties. This system was put in place at Wakui City to divert resources to an emerging problem that the local police could not manage on their own, and is designed for rather extreme cases. In order for it to work, the "PG (Public Guardian) System" was created to assign benefactors who perform tasks on the behalf of their clients.
Banshiryuu is a vertical-scrolling danmaku shoot 'em up that focuses on fewer, faster bullets, and is the third official game in the Seihou Project. The game came in two major versions, released on Comiket 67 (Winter 2004) and Comiket 74 (Summer 2008) respectively.
Advanced Battlegrounds: The Future of Combat is an expanded re-release of Chrome. It includes the following extra content:
New single-player missions (not integrated into the campaign)
Video tutorial for the editor
Soundtrack CD
Mouse pad
It's a Massmouth Christmas special! Massmouthmas takes place after the events of Massmouth 1 but before Massmouth 2.
The protagonist Massmouth is on winter vacation in a remote cabin when employment benefactor The Worm calls over video with an urgent problem. A friend of The Worm owns a toy factory near Massmouth's holiday spot that is malfunctioning and it must be fixed immediately. With a promise of compensation, Massmouth heads out into the cold see what they can do.
Muv-Luv Supplement is a fan disc of Muv-Luv and contains various things, like an after story of Muv-Luv Extra; a series of short stories focusing around one of the main heroines; and Muv-Luv Duelist, which is a trading card game.
A wacky little adventure whipped up in a matter of days as a Christmas present for SuperDanny himself, SuperDanny's Adventure features numerous gameplay styles across eight levels filled with loads of inside jokes, mixed sprites, mixed musics and all manner of ridiculousness. And a cheesy engine to boot.
FbSp003: City Under Siege is pretty much exactly that, a city in the process of becoming another alien stronghold. As usual it's your job to do the down and dirty, getting in there and clearing out the invaders
Santa Claus in Trouble ... again has the same premise as its predecessor: Santa Claus has lost all the presents. Now the player takes his role and has to retrieve them.
This game is a standard 3D platformer, meaning the player uses his keyboard to jump through the 12 levels. He has to avoid pits and enemies. Since Santa is a peaceful guy there is no way to kill them.
The basic goal of the level is to reach the exit alive. On the way the player finds the presents, for each one he collects he gets points - more challenging to get are more rewarding. There are also health boosts and reset points. But these are just temporary saves when the player dies - if all lives are lost or he ends the game he has to start all over.