If you have beat the Random Upgrade Challenge, then you have the option in the upgrade menu to choose a random upgrade.
this actually makes sense and would be fun! :)
I don't see the point in this. Unless you can get an upgrade that is locked by progression standards.
But I don't know what other upgrade would be suiting for the Random Upgrade Challenge.
ermmm... a giant drill for a hand weapon cause upgrade bot has one
and the drill makes your enemies stronger
a offensive drill
I think that a cool upgrade for the random upgrade challenge is the repair upgrade that can be used infinite times (kinda like clone) and it will repair you robot so everything you lost would be repaired.