How can you go to Level Select in Sonic Classic Collection

Sonic The Hedgehog: After it says Sonic Team Presents, at the start of the game, Press: Up, Down, Left, Right, Y + Start and you can choose any level.

Sonic 2:There is none.
Sonic The Hedgehog 3:At the drum beat hurry and press up up down down up up up.Go down twice and you will see sound test.
Sonic and Knuckles: Start Mushroom Hill Zone as Sonic. Head right until you come to the first Pull-Up machine. Jump and hang on it. Then, Press Left, Left, LEFT RIGHT RIGHT RIGHT UP UP UP then get a game over at where you select sonic or knuckles hold Y+START THEN CHOOSE A LEVEL (THE NUMBERS ARE SONIC TAILS AND KNUCKLES)
That's how you go to Level Select in Sonic Classic Collection.

(Note: If I got some thing not right improve my answer)