Tomoyo Fighter ~It's an Exciting Life~ - Perfect Edition

I ran into this same phenomenon while madly unleashing the might of Muneo's machine gun in BR2 mode. There are just a few bugs in Tomoyo Fighter, yeah.

After a bit of research on the ChinchillaSoft blog, I've concluded that this is a "developer mode" or "debug mode" of sorts.
This dev mode unlocks three secret, partially-transparent buttons on the right of the title screen upon reloading the game, as seen here:


These buttons, unlike the normal game menu, are accessed using the mouse instead of the keyboard.
The first button (マップエディット) is a map editor. I guess you can create your own maps and edit existing ones.
The second button (当たり判定) presumably lets you mess with collision detection from what the button says, but it doesn't really seem to do anything for me [yet]. I haven't really messed with the devmode enough, I figure.
The third button (きゃらエディット) is a character editor. Looks like you can create and edit characters.

In this ChinchillaSoft blog entry on June 28th, you can see them using the character editor to work on Nanoha. She's yet incomplete, as you all know.

I also did a little experimentation with the game files, and found that devmode is enabled by just one thing--the magic creation of a new file in the main "Tomoyo Fighter - Perfect" folder. This file (that I've circled in red on my screenshot, using my old friend MSPaint) is called "tpf404."
The screwed-up title menu that good BennyChan also found is a completely unrelated result of the bug we stumbled into. (I fixed it by just restoring all the game files other than my "save" folder and "tpf404." Good as new.) As such, I've uploaded "tpf404" here so that you too can have the magic devmode sans wacked-menu by simply putting it into the game folder.
HOWEVER: devmode will also screw up your "Game Start" mode itself in creative ways that seem to vary for each person. But that's really not a problem; when you don't want to use devmode and just want to play the game, rename the "tpf404" file to "tpf404.dev," and everything will go back to normal. Then rename it to "tpf404" again to turn devmode on again.

I'm afraid that I haven't played around with it yet, so I myself have no idea how to actually use it as of now. It looks kind of complicated, so it might be a while before I figure it out. So you guys are... on your own in that respect. Use caution.
And... sorry for the hueg post, everyone.

tl;dr: I found a magic debug/developer mode in the game--download it here if you're interested. Put it in the game folder. Rename it to "tpf404.dev" or something when you don't want to use it, and the game itself will go back to normal and not be screwed up.

Oh, and while I'm at it... Supoo/Spoo is a much-loved Japanese meme that started here. People who watched Zoku Sayonara Zetsubou Sensei will find it to be eerily familiar and... quite enlightening.
Spoo's a children's show character that usually looks like this, but the meme-Spoo (and, thus, the Spoo in Tomoyo Fighter) is the mangled version, of course.