I may only do an update to the Sprites for the Harder/Adult Version then again i might not, I will also have to cut down the play area screen size so the top and bottom are not playable so i can tighten up the attack waves to help make it harder, If you look at some of my other games you will see i don't use the whole playable screen, the whole screen is 5 blocks high but to make games harder/tighter i use only 3 blocks that way attacks waves are closer and more of a problem for the Player.