Explorebots were originally intended to serve as "experience collectors", robots programmed to accumulate data and experience through exploration to fuel AI think tanks, which were at that time too big to feasibly move.
However, the bots were not programmed with actual artificial intelligence themselves, only a series of relatively less complicated computer algorithms that compelled them to be innately curious.
Too curious, in fact. When gathering data on other worlds, they would often wander into lethal situations. More were terminated as easy prey for ridiculously obvious Blacktron Frog traps than by any other factor.
You know what they say...
"Curiosity killed the bot."
FINALLY got some Mixels, trying out some stuff with them. Please tell me what you think, I always appreciate it. :D