As stated in Yavn Speaks yesterday, the Haunted Mansion game is giving out more credits...
Instead of the usual 5 credits per ghost, it's giving out 10!
I'm guessing they were getting a lot of complaints about credit earning games since they changed fireworks. I'm thinking they should have given Jungle Cruise an extra credits day too.
Ah well, I'm going to enjoy my at least 800 credits a game today! That quest kiosk is getting closer! I'm half way there.