The 4th game in the Bloons TD series does not disappoint!
Graphics: It has cutesy graphics and lively animations, it has nice tower pictures and animations with many details. It is fun to look at.
Graphics Score: 9
Sound: Nice songs for the background that get stuck in your head. Listening to the towers pop balloons is fun. Gets annoying at times but can be shut off, and even replaced with your own music.
Sound Score: 9
Gameplay: Fun game that changes with every new tower, upgrade, map and difficulty although the basic gameplay stays the same. Game runs smoothly and can be fast-fowarded for the impatient. The classic TD formula works well with Bloons, for the fourth time. It is fun to play, even for five minutes once in a while. The difficulty varies drastically, from super easy to quite hard, giving it a difficulty for everybody to use. Obviously it is more rewarding doing harder things and you can even get bonuses for this.
Gameplay: 10
Replay Value: This is another place where the game shines. Although I have not yet played 100 hours, I easily can and will (eventually) without being bored. The game has amazing replay value as there are many goals after you beat every track on easy (like beat every track on hard!). Beating every track on hard, for example, gives you bonuses and will take a VERY LONG TIME. Hard in this game means hard. So unless you already are a Bloons TD master you should have your fair share of losses. Also, after beating the normal levels (50 in easy, 60 in medium, 75 in hard) you can play "freeplay" which goes on "forever". Really it goes to level 250, a level that is technically beatable, then stops, but nobody has gotten there nor beaten it. I am currently in a freeplay game on lvl 115 and by now I have millions of dollars and the game has started to lag. I plan on trying to get a gamecenter highscore by selling my towers. Then, I still have more of the game to beat.
Replay Value: 10
BTD4 is a great game, to be enjoyed by all. It is a worth while buy for anyone's IPhone or IPod Touch. And, yes, it will still work on the IPad.
Final Score: 9.5