- Base-Breaking Character:
- Baraka is considered this in this game, not so much because he's considered a bad character, but because some felt he took a spot that should have gone to a more popular MK character (e.g. Reptile, Kung Lao, Mileena).
- Dark Kahn: For some, he was well received either for his Hammy speeches and/or his unique design. Detractors consider him the embodiment of all that is wrong with MK vs DC.
- Critical Dissonance: This game was well received by the critics earning scores in 70%s and higher on Metacritic and Gamerankings. Players, and especially devoted Mortal Kombat fans, were not as pleased.
- Ensemble Darkhorse: The Joker. He got a huge ovation when he was announced, and his Fatality is one of the only ones people think didn't suck (so much so, that Shang Tsung borrows it in Mortal Kombat 9.)
- Captain Marvel and Deathstroke to some extent have also gained praise for this being the first time either character debuted in a videogame. The latter especially so who, as a mercenary who kills for hire and also being a Ninjaesque character, would not be out of place in a main Mortal Kombat title.
- Good Bad Bugs: If Superman is able to chain his final hit into the Pro Move variant of his breath attack, the animation for the move is so long that it prevents the opponent from recovering their life in time for the next round, instantly scoring Supes a second win.
- Harsher in Hindsight:
- The Liu Kang vs Raiden fight late in the MK-side story mode now comes off a little bit darker in light of Mortal Kombat 9 in which Raiden unwittingly fatally wounded Liu Kang and was cursed by him with his dying breath.
- Likewise, Lex Luthor calling out Superman in Supes' chapter, in lieu of the events of Injustice: Gods Among Us.
- Hilarious in Hindsight: After returning from their assigned missions, Shang Tsung mocks Kano for his defeat saying "A clown? You were defeated by a CLOWN?". In the next game, Shang Tsung would turn into a clown while recreating the Joker's Fatality from this game.
- Idiot Plot: More than a half of the fights are triggered by the Rage. The characters affected never come up with a way to resist it other than Raiden and Superman managing to do so in the last two matches.
- Older Than They Think:
- Way back in Mortal Kombat Trilogy, there was the Aggressor Meter, which, like the Rage meter, involved filling it and being so angry that you get more powerful. However, the Rage meter is filled by taking hits and allows you to use a section of the meter to do a Combo Breaker, while the Aggressor Meter was filled by dishing out damage and simply turned you into a Lightning Bruiser for a few seconds once you filled it.
- This game was also the debut of the series' classic, character-episodic Story Mode storytelling, further improved by Mortal Kombat 9, Injustice: Gods Among Us and Mortal Kombat X.
- So Okay, It's Average: Not a bad game by any means, and while the premise did have a lot of potential, it didn't truly live up to the hype it was generating.
- They Changed It, Now It Sucks: A major complaint about the game is that it changed from a violent, gore-fest filled series to a T-Rated crossover with mediocre finishing moves. Thankfully, it didn't stay that way for long.
YMMV / Mortal Kombat vs. DC Universe
Whether this game is ridiculously awesome or just plain ridiculous is up for debate.