Click START or hit the spacebar to see the tiers and their letters. Press R to go back to the list of tiers and their letters. In order to get the Tier *insert number here* to go away, you have to hit R... I'm working on fixing that. THIS IS A WORK IN PROGRESS
Made July 3rd, 2013. More updates to come! - Update 1.0: added script for Tier 2, now I just need to change the sprite's costume. Pretty much all of the script is finished for the whole thing; now it is just a matter of duplicating it.