this is a normal tower defense game. to play follow these insructions: 1.click on the map you want to chose 2.click the start button in the upper right 3.place the tower you want to use by clicking on the button on the top and then clicking again(when red try moving it) where you want to place this tower.(a breif description of the tower will be given if you press space when your mouse pointer is over the button 4.hit the start button in the bottom right and wait for the level to be over(this might take a while because even after you destroy all of the blocks the next level only comes when the last block would actually hit the end) 5.there are only 10 levels and a score will be shown if you win you can post this score in the comments to compare how well you did compared with other people other comments: please submit glitches and I will try to fix them (I already know that sometimes the arrows will go on the course and I couldn't figure out how to fix that) the green one needs to be placed on the track, all of the others go off the track