Me and my boyfriend went there for the happy hours- Sunday to Thursday 4-7 pm, you can get $10 per person for game play for 1 hour.
At first we got our card but the cards wasn't working. Turns out it's because they were not activated and we had to go back to the front desk to activate. Also there was many time where my card didn't work properly, I had to insert few times on every machine to get it working.
The limitation for this deal is that you can't play any games that spits out tickets, which is majority of the games thats there. It's only good for racing or shooting games so it gets boring real quick. Also all games runs for like 1 minute, the game ends so fast before you realize it.
I'd probably not go back, unless I was in the area and it happens to be a Wednesday.
P.s: Wednesday is half priced for game tokens.