At the bottom of every stage there is a place I call the DATA ROOM. Its filled with various blocks, glitch blocks, coins, glitch coins, platforms, and glitch platforms.
To get there you must have beaten a stage with a downward pipe (like macro zone stage 1). Go back to the stage and enter the pipe and quickly pause the game and push select to exit the stage. Go to another stageand it will send you downward.
With this in mind you can take a shortcut on tree zone stage 2. (have macro zone stage 1 and tree zone stage 1 beat. Yo MUST be small to do this.) go to macro zone stage 1 and enter the pipe and quickly pause the game and push select to exit the stage.
Go to tree zone stage 2 and as soon as you clip through the floor hold LEFT until you reach the data room. Now run left and go under the wall and (you may have to jump to another block) get back to the stage. "hey wait a minute.
Is this the beta part of the stage? Oh just a copy." go into the pipe *and run right and beat the stage (*however, jump on the bubble on the left and keep tapping A. "ok, I went under the REAL stage. Hey bomber dudes. YOU CANT SEE ME, BUT I CAN SEE YOU!"