I mean, there
is a small hint posted along with the image.
(I'm talking about the description / flavour text -- that's as much of a hint as I'll give!)
As the drawings disappear, the monolith begins to glow. Green, yellows, reds -- a strange array of colours seem to form an image. A character, perhaps? In different states, at that. Still, the image is... quite hard to discern. In it you see so many things, and yet none that are quite clear. The monolith's surface seems much more like a mirror at this point than anything else. A nightmare. It's like a reflection of your current state: confusion and fear.
There is only one character present, in different states. Their colours are green, yellows (or orange, whichever you want to call it), and reds (or brown).
If you hope and struggle hard enough, perhaps the monolith will grace you with some additional aid later tonight (though it's quite pleased that someone was able to solve it already).
With that said: there is a second, more subtle hint in the original puzzle's instructions! Something's different compared to last week.
Careful reading has its benefits.
The answer should be a specific Nintendo character! Remember to enter their name with all capital letters, no spaces, and no special characters. For example, if the character was named Mistreil*, then your redemption code would be "MISTREIL".
Unfortunately, Mistreil is not an official Nintendo character.
Last week's redemption code didn't make mention of spaces or special characters. Chargin' Chuck has both of these.
The notes here correspond to
Super Mario World's Overworld Theme. Super Mario World is the game with the specific Chargin' Chuck sprites used.