I wasn't about to play this strange ceiling punching game in public with all those people watching. Nihon Kogakuin College's crazy game display at TGS drew a crowd, but almost no one from the crowd was willing to step forward and actually play the thing.
I guess some of the problem lies in the required motion to play. I guess that the only way to remedy ninjas crawling in your attic is to put a punching game on the end of a long stick and then use that to hit the ceiling, effectively knocking them out. Some ninjas require multiple hits, and faster ones require multiple stick jabs. What ends up happening is that the player has to make fevered up-and-down whacking motions to succeed.
In the crowd, people were forcing back smirks. Even the cute booth babes made embarrassed faces.
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