Im a very average MVC2 player but I can teach you how I learned the game.
There is this team called Team Guard, or Team Sheild (storm/Sent/Cable) where you can learn all aspects of the game (Run away, rushdown, keepaway)
Runaway is simple, you run, but you build meter at the same time. Useful for get a character out safely and to run the time down. Storm, Cyclops and believe it or not Dan (HINT HINT lol) is the best at this. Storm can literally superjump once and build a full meter. Cyclops has one of the highest priority attacks in the game with j.hk. and Dan’s taunts build meter the quickest in the game.
rushdown is simple, you simply rushdown, but in mvc2 it is harder than it is in SSF4. You play Dan correct? you are trying to rushdown sagat, but he is throwing a shitload of fireballs and Anti-airing you when you jump. In MVC2 it is this, plus you gotta worry about an anti-air assist (AAA) getting you back and having to start all over. With rushdown, you have many tools, like Triangle jumping, projectiles, wavedashing, etc. but with those tools is still really difficult to do so. But when you do suceed in rushingdown, the results are so good. The best at rushing is Magneto, but Storm and IM are notorious as well. Magneto has all the tools to be sucessful, like the quickest dash in the game, tri-jumps, resets galore, infinites, etc. IM is a slower, yet easier version of Magneto. Storm is quick and versatile, with a tri-jump, and 50% combo and quick normals, making her a very good character to rushdown with.
Keepaway is the low-tiers kryptonite lol. it is when you abuse projectiles to pin down opponents, chip them, and ultimately, keeping them back. Not very simple, because this also requires you to read your opponents mind lol. Cable, Spiral, Sentinel, and Strider are the best at this. Cable has the best hyper in the game IMO. air Hyper viper beam it has instant recovery and it pins opponents down. Don’t abuse this hyper, because you will need the meter. He also has solid projectiles with st. hp, j. hp, lp. viper beams, lk grenades, and cr. hp. Use these. Spiral is the chip queen. Her knives have damn good priority and they chip like hell. Paired with Sentinel, you have the one of the most devastating trap in the game. Sent is a zoning monster. cr. hp has good priority, it is easily canceled with all of his special/hypers, and he has flight mode, which can be used as a get off me manuver. Strider isn’t necessarily the best keepaway character (he rushes more), but he has a hyper called ouroborus which has potential to trap all of the characters in the game, with almost no way out.
Also know that: pixies->projectile, projectile->Giants, Giants->pixies. Although this game is infamous for being “unbalance”, I believe that this is a way to keep top tiers at bay. for example, lets say I picked Cable/Spiral/Sent (Team Duc), and you had no skill whatsoever with top tiers, but you were a beast with Dan/Spiderman/Doom and you picked them. You pretty much countered me. since cable and Spiral are projectile characters, you came up to me with 2 pixies (spiderman/Dan) and countered me in that way. and then you got Doom (projectile) to counter Sentinel (Giant). if you were slightly better than i was, you might beat me. But in reality, Dan sucks because he moves like a turtle, so I would probably win. But if you did win, it was because you countered my characters.
Now I don’t want that bs to happen anymore, so I pick Storm/Sent/Cable, so you couldn’t counter me. Storm, a pixie, Sent, a giant, and Cable, projectile makes it so that you couldn’t counter my characters. So then I destroy you lol.
Basically, know what character can do what, and you’ll be fine against others.
Tier list (in order) iThis is important to know since marvel is unbalanced.
Ruby Heart (Disagree lol)
Wolverine Bone Claw
Hoped I helped