As we said earlier, physical rewards are making it out to backers of Mighty No. 9. Not surprisingly, many people are finding this to be too little, too late. There's also a complaint about the manual for the game, as it does not actually fit inside the faux NES box included with rewards.
UPDATE - FanGamer has commented on the size of the manual
"The English manuals fit the NES-style boxes correctly. Unfortunately, the Japanese manuals were printed at the same size as the English manuals, which don’t fit the Famicom-style boxes. We will be shipping a properly sized replacement manual to everyone who got the JP box+manual (at no additional charge, of course)."