When im bored at school i go to archshrk to play bloons tower defense 4. ( http://archshrk.com/shall-we-play-a-game/play-bloons-tower-defense-4 ) Of course the teachers blocked it half way through the school year. After that happened we all started getting on http://coolmath-games.com/ . They had gotten bloons tower defense 3 but there not getting 4. But coolmath has some other fun games as well. Near the end of 4th grade we started playing on http://primarygames.com/ dunebuggy is the funnest to me. If you are interested in duck life then that is on primary games also.