Alrighty.... For Ichigo's game, and this is all running off memory from the other night when I plowed through it:
(I think there are some shenanigens where you have to find Choco at the start and ask her to talk to Ichigo in the bathroom before the game actually get's moving)
1) Talk to the girl in the cap, she'll tell you to get 'Michelangelo' for her. This is the name that Ichigo gives the rabbit doll if you catch it and give it to her. So first you need to catch one and give it to Ichigo, then catch another. The bunny doll is the BOTTOM RIGHT-MOST crane game
To defeat the rabbit doll block it's attack every 3rd round (i.e. Attack->Attack->Block, repeat) and hope you don't miss

(On a side note, Ichigo names the four obtainable animal after the TMNTs...)
2) After giving the doll to the cap-girl, start hanging out with Ichigo and giving her stuff. Play against her on the arcade machine and beat her 3 times to have a 'punishment game' scene.
3) Take Ichigo into the VR machines when you can and play them, and she'll eventually want to be trained in using them. Play the yellow console (quiz?) game to the right of the counter as well. Get photos taken. etc. etc.
4) Once you've basically had an event at most of the stations, you won't be able to do anything but interact with (i think) the dance machine (blue station next to the earlier mentioned yellow machine). This should trigger a H-scene. Afterwards, you'll talk to cap girl again.
5) From then on, just keep taking Ichigo to different places and beating her, and back to the VR machines.
At some point cap-girl will tell you if you find her a gold medal/coin she'll give you access to the back room. To do so, beat the dance machine whilst Ichigo is NOT in your party on Normal, then wait for a day where there is a big crowd around the machine, and talk to the red-haired guy closest to the machine to learn a battle skill. Then, pass a couple of days so the machine is available again, and fight both the 'hyper' and 'another' difficulties, should not be too hard if you use the skill. You will get the gold coin as a prize which you can hand to the cap-girl and unlock the staff room. Use the console for cg gallery/scene replay.
As another side note, each day the 'popular' event will cycle. Going from the arcade games, to the VR/dance machine, to the catcher games, and repeat.
This was thrown together in about 5 minutes so I prolly missed some stuff, sorry in advance.
If anyone desperately wants a save for THAT game PM me, we should keep in mind this thread is for a different game.
Choco's game only has 2 CG's, fell and RCG... I believe, didn't play that one any further after 'clearing' it.
@koitchi (/anyone else) getting a friend to xlate that for me, if anyone else can tell me what that BMP says earlier would be great. All I can make out is 'File.... something something something' >.<