Electric type gym in an Arcade, sorta like the gnoggin guy.
Also, it is a maze mine is based on trivia, if you answer right you get an easy straightforward path to the gym leader, getting the answer wrong will make a more winding path with tougher opponents but you won't hit a dead end unless you get them all wrong.
My trainers would probably be Super nerds mostly also some Scientists, a Beauty, and a rocker on a game that is "not Guitar hero" a Young Couple also I would tuck a Hex Maniac in at least one of the dead ends.
Like I said I still have to hammer out the trainers but You would see some Magnemite, Blitzle, Zebstrika, Dedenne, Joltik and maybe a Stunfisk, the Young Couple would, of course, have Plusle and Minun, the Hex Maniac would have Eelektross, Rotom and maybe a whammy Trevenant
My team Galvantula, Raichu, Magneton and Lanturn Electric types I think are underloved. On challenge mode, I add Frost Rotom and Magneton is a Magnezone. Unless they add an Electric/Fighting type. (I suggest Frankenstein's monster)
My badge was the LED Badge but now I think it should be the Arcade Badge which looks like an arcade cabinet.