Neopets/Cliffhanger

This a exactly like the famous game "Hangman." The game is very simple, and it has 3 levels:
 * 1) SIMPLE costs 15NP and receive 50NP for winning.
 * 2) MEDIUM costs 30NP and receive 100NP for winning.
 * 3) HARD costs 50NP and you receive 150NP when you win.

Each day may only receive a maximum of 1,500NP.