I'm attempting to parse some data from screenshots of a mobile game:

Since all the text is in predetermined areas I can easily grab the individual numbers to feed to tesseract:


The top image is recognized fine, for the bottom image i receive the following translation :
1 EM)
with -psm 6 or 7, without I just get EM)
As you can see I've done some modification, greyscale and inversion. I've tried scaling the image, it helps some times and breaks others.
At this point, I'm at a loss, I've done as much as I can think of to improve the results. The only thing left, is it due to the game using a weird font that Tesseract doesn't fully understand? If so, are there any good resources for training the tool for a new font? I'm pretty much a newbie when it comes to tesseract.
Anyone have any other suggestions?
-Brian