As it stands Mas Furerte 2k is a bit inconsistent with its input detection.
It encourages physical abuse of your keyboard and even if you do mash every key 30 times it inconsistently detects that even if you keep your mouse on the circle.
I think a key press system would be perfect total replacement.
You know the key press on slot machines? Well turn that into a game. Like those resident evil quicktime events, press G, now press Y, now press M. But keep your dot in the circle. Picture that at a frantic pace. You still have to keep your mouse aligned but now its less of a frantic mash that might actually damage your hardware and more of a game of skill that can be mastered.
The more correct keys your press and the faster you do, the higher your power.