No there is no activation of any sort needed at all.
There are only 3 items that need manual activation outside of a match and those are the
Night Vision camera, the
Futa kit and the
Xmas decoration.
_______________________________________________
You buy it in the arcade shop and then you have it automatically in every round.
KaporVey's post (3 posts above this one) explains where to find the scanner just fine. If you used the assembly File from 0xanEverage for the One-Scan-Only, just take it from there and scan the TV behind the bar once.
Here a picture of the table where the scanner is, in case you need it.
Also, if you need help with i
tems in general,
how to use them or
where to find them, then my shop list may help you to get those informations in the future.
-> Find the Shop
/Item list
--> Here