These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: Teenage Mutant Ninja Turtles: Turtles in Time
Best Boss Ever: Fighting Shredder in the SNES version, by throwing Foot Soldiers towards the screen at him.
Breather Level: Neon Night Riders in the SNES version. It's a bonus stage sandwiched between two very tough levels. (The arcade version is much tougher, however.)
Broken Base: Much like the original arcade game, which is better? Arcade or SNES? Most agree that Re-Shelled wasn't a good remake, though.
Demonic Spiders: The Yellow Frisbee Foot Soldiers which first appears at "Skull and Crossbones". They react far better than their common part, throw a rather difficult to dodge boomerang attack that can hit twice and if you get too close they simply kick you away probably faster than you can attack, to top that they can endure a decent amount of punishment before dying. Fighting them with Michelangelo is a rage inducing task, though well timed attacks can deflect them.
Game Breaker: The ability to control throws and slams in the SNES port. While the throw is required for the exclusive Shredder boss where you throw foot soliders at him, the slams and throws reduce all enemies save for stone warriors into One Hit Kills and earn extra lives really fast.
Guide Dang It: In the SNES version throwing Foot Soldiers on the camera is amusing... And mandatory to defeat Shredder during the first fight against him. The problem is that the game doesn't tell you how you do it and chances are that you've done it so far by accident. note You need to hit a Foot Soldier with a normal attack and while he's stunned, keep walking forward and then attack again.
It's Easy, so It Sucks: The SNES port for some people. The gameplay is slower, bosses and enemies are easier than their arcade versions due to weaker AI and Sewer Surfin and Neon Night Riders became bonus rounds.
It's Hard, so It Sucks: The Genesis port, Hyperstone Heist, can be this for some. While there aren't as many levels (there's five) compared to Turtles In Time, the stages are longer, enemies move faster, and attack more aggressively.
It's the Same, Now It Sucks: Those who are aware of the Arcade version say this about the remake, which was a bit too accurate to the arcade, and didn't have many features from the somewhat more popular SNES version.
This is how some feel about Hyperstone Heist, since aside from adding a run button, there is not much else. There are some new areas, but everything else is a re-skin of stages seen in the Arcade/SNES counterparts, though the environments have more detail and faster game play compared to the SNES.
Mis-blamed: The fans say that the game "Removed" several features that made the game good, like Bebop and Rocksteady, the Technodrome, and Super Shredder... When they're talking about the SNES version, which expanded upon the arcade game.
Narm Charm: Shredder, in the versions he actually says: "Turtle Soup, my favorite!" would probably be ridiculously funny, if the actor didn't sound so awesome.
Polished Port: The SNES version added an extra level, extra bosses (not to mention changing some of the original, adding mainstays Bebop and Rocksteady and Slash) and a few new resources (time-trial, two-player versus). It was so improved many complained Reshelled just copied the arcade.
Suspiciously Similar Song: Unfortunately, due to Ubi Soft being unable to secure the rights to Mutsuhiko Izumi's stellar music, the tunes in the Re-Shelled version are essentially sound-alikes that get the job done but are nowhere near as memorable.
That One Boss: The SNES version replaced the cement man, a minor monster that only briefly appeared on the show, with Slash. Unfortunately, he's the hardest boss on the SNES version for many reasons. He is a Lightning Bruiser that's immune to frontal attacks and he can counter with a rolling attack that deals a few bars of energy when he Turns Red. note Slash is vulnerable from behind, so it helps to sneak behind him as he attacks and then hit him from there.
Shredder's Machine in Hard Mode (SNES version), the common mooks you use to throw at him now blocks requiring you to charge at them to break their guard and throw them at Shredder's machine, it gets tricky trying to do that while other Foot Soldiers gang up on you and Shredder keeps using you as a target practice. Hopefully you didn't forget to change the Auto-Dash before starting...
They did, however, completely change the soundtrack, which many fans (whether it's of the arcade or the SNES version) are bitter about.
Fans of the arcade version didn't really like Sewer Surfin' and Neon Night Riders becoming bonus stages. Especially since they're shorter, enemies die in one hit and you can easily avoid hitting anyone until the end.
Fans of the Arcade or SNES version do not like the fact that the Genesis port lacks the throw-the-foot-ninja at the screen maneuver.