Very well programmed and entertaining! Nice menus and graphics! I just found it easy to beat the game... At level 20 i had already finished a setup that got me past level 50 without any changes, I did not wanted to test it further, but who knows how long it last? I would give less money for each kill, and who knows, I don`t recall any tower defense game with a degradation system, it could be really fun to balance between getting new towers, and repairing old ones. Cheers!