I experimented a bit with filters, color changing and distortion using and couldn't come to a conclusion. It seems to match but not well enough for a confirmation. The lines of Chris-chan Sonichu, the floor and the whites from the wall seems a possible yes, but the major problem is the pink blur where Bowser stands. Even altering the hue, it doesn't fit, and the shade reminds more of Rosechu's pink than Bowser's skin. I'm very casual with GIMP and use it for fun, so don't expect a professional level of analysis or usage.
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