Here's the 4-color variant, for submission to the weekly challenge :)
As the original was made during the challenge week, and some people have advised me to make a 4col version and submit it- here it is :)
I'm still not 100% sure I'm not breaking any rules by submitting what is basically a recolor of an 'old' piece, so if I am, please kindly state so :)
And now, for some fictional history!
"Since the original RoboBoi was deemed 'too colorful' and 'eye-hurting' by the critics of its time, the publisher tried to patch things up by re-releasing a 'toned down' variant, actually reducing its rich 7 color palette with a simpler, more memory-efficient 4 color one.
It was still a commercial failure, though."