Barriers to entry are very high. Picking points stimulates despite the great multiplicity than in the "Originals". Move your character, as well as level design and style of the game is addictive to play. Desire to replay caused by "softness" in the control (the "Originals" addictive through irritability). As a result, Flappy Bird style Sonic surpassed Flappy Bird in the style of Mario. Suck it Nintendo fans.