This is an image that we bet Gene Simmons wishes hadn't survived the passing of the years, but it has, and as we're all here seeing it in 2018, it doesn't look great. The KISS legend sits in a wheelchair, with a pose that suggests he's mocking the disabled. There's no other way of describing it.
We should point out that understanding of disabled individuals has come a long way since this was taken in a toilet in Detroit in 1976, and that Simmons probably intended this as a harmless bit of fun in a much less politically correct age, so perhaps it's not fair to judge him by modern standards. At the very least, given the elaborate stage makeup and costume and the basic surroundings, it's a very surreal picture.