Bass takes some getting adjusted to, not just in the context of this game, but for those that played Mega Man and Bass.
In the context of Mega Man and Bass, Bass' Dash cannot be mapped to a single button; sliding/dashing will take some adjustment and fingerplay.
In the context of the game itself, Bass' Rapid Buster is VERY useful for midbosses and somewhat more useful for bosses, but stage enemies are a bit trickier. The Double Jump is gone, so Bass does not have the second jump to have the equivalent of Mega or Proto's buster. You also can't move and shoot unless you jump (or I would suggest short hopping). You also cannot shoot through walls, which is quite the safety net in these games.
Very interesting character to play as. Proto Man changed up the game a little bit with all of his attributes; Bass breaks just as much, if not more, ground as far as the tactics of beating a Classic Mega Man game.