This has been talked about -- I want to say it was on a podcast. It is a bug with the font used in the small-print on Shadow (when the skill shot is available). The unfortunate effect of this bug is that 7s look like 6s! The actual score was always 75 million (add the points at 46:20).
No, seriously, it's true. I've heard the same thing is true for the end-of-game font used on TOTAN, but I don't have confirmation. I wish I could remember where I heard the conversation about this. Perhaps it was already on Tilt Forums?
I suppose the unfortunate side effect is there might be a lot of other games with this problem and we'd basically never know!