TMNT Side Scrollers

[Oxnard Hamster]

I never undestand why some people like it more. Even if it has extra levels, it is completely inferior, both graphically and gameplay.

Plus you don't die all the time like you do in the arcade game. Of course, arcade machines are meant to make a profit, so of course you're going to be popping in lots of quarters. That alone makes the NES versions that much more appealing.
And I think the NES had more consistent control. Awhile ago, I played the arcade versions via rom and emulator, and I noticed the turtles are rather floaty when they execute their jump kicks, plus they actually seem to fly up a bit after executing a kick in mid-air. On the NES, the jump kicks are swift, and move in a downward diagonal fashion. Much better.
But about gameplay, one thing I like better about the arcade version is you can stand in front of an enemy, except bosses, and keep mashing the attack button until you beat him. On the NES, enemies seem to be programmed to counter attack immediately after being hit. That means you have to resort to either hit and run tactics, which can be a pain when the enemies become faster and more aggressive in later stages, or you have to constantly use the weapon swipe, which seems much easier to pull off on the NES anyway.
And on the arcade, I did find a good rhythm for Krang. Stand off center, and keep rapidly executing jump kicks. On the NES, I think he's much harder because of the aforementioned auto-counter attack.