Can I fire bullets with power higher than 3 or lower than 1?
The answer is no and yes. You can’t fire bullets with power greater than 3, but you can fire bullets with power as low as 0.1. If you call a firing function (ie. setFire) with a value greater than 3, Robocode will adjust it to 3, and if you call it with a power lower than 0.1 it will adjust it to 0.1.