The game ignores adjectives you try to put when writing any word, so writing "Small Hat" or "Big Hat" will only be recognized as "Hat", and will spawn the same thing. The exploit is in the fact that during Advanced Mode, the game will NOT accuse "same word" if you type an adjective before the word itself, eventhough the exact same thing is spawned. You can clear a stage three times by typing "Wings" the first time, "Big Wings" the second time and "Small Wings" the third time, you'll simply get the Wings all three times, but the game will register 3 different words and will allow it. If you're feeling lazy, you don't even have to put in a proper adjective, since the game doesn't recognize them, simply typing "aaa Wings" will register as "Wings", the game ignores the "aaa" as an Adjective (even if it really isn't one).