This rules system is called LODE (Lots Of Dice, Eh?). The core of the system is pretty simple
The rules resolve actions simply and quickly by counting successes on a pool of six-sided dice. Characters start out pretty competent, and there's less emphasis on improving abilities than on doing stuff. Features include making that extra effort, mowing through groups of henchmen, and a freeform system for developing extraordinary ability in specialised feats.