How about a command that disables the minimap? So if you don't want to let people see people/important stuff.. Why not? You can make adventures/puzzles/innovations (like things that makes minimap as a cheat) to make more effect..
"Selective Coin Door/Gates" that can only change for a specific number of coins and change back after getting a diff. amount of coins. For example, There is a "SLCT" Coindoor that needs 3 coins So you decided to get 3 coins.. After you got 3 coins the "SLCT" coindoor opens (obviously) but then you found another coin and you tried to get it, So the "SLCT" Coindoor closed. Could be really helpful for adding more depth for puzzles or just simply ingenious inventions in EE.
How about an inverted switch? It does sound useless and like "what's the point" but actually Its really sounds useful as it can make the "purple switches pack" ALOT more worth it.
How about a "Lever" and once pushed, Its own pack of lever-activated gravity arrows (not including gravity dots) will change to its opposite gravity counterpart :) AND once the lever is pulled it will change in its own state (state = the lever-activated gravity arrows)
 "Jeeves Volleyball"){kind=icon}
 "Questopia"){kind=icon}
 "TDP4 Team Battle"){kind=icon}
 "Everybody Edits"){kind=icon}
 "Astroflux"){kind=icon}
 "Slush Invaders Game"){kind=icon}
 "Viridis cubus"){kind=icon}
 "CS Portable"){kind=icon}
 "Just A Cell"){kind=icon}