Spider-Man: Shattered Dimensions

You must get a platinum metal on all 3 different classes for each level which are combo rating , clear time, and emblems collected. The following info was taking from the Brady games Official Strategy Guide

Kraven: 19,000 Combo - 35 Emblems - 20:00 Clear
Hammerhead: 19,000 Combo - 20 Emblems - 25:00 Clear
Hobgoblin: 19,000 Combo - 25 Emblems - 20:00 Clear
Electro: 19,000 Combo - 45 Emblems - 20:00 Clear
Sandman: 19,000 Combo - 50 Emblems - 25:00 Clear
Vulture: 19,000 Combo - 30 Emblems - 35 :00 Clear
Scorpion: 19,000 Combo - 60 Emblems - 30:00 Clear
Deadpool: 19,000 Combo - 105 Emblems - 35:00 Clear
Juggernaught: 19,000 Combo - 60 Emblems - 35:00 Clear
Goblin: 19,000Combo - 20 Emblems - 35:00 Clear
Doctor Octopus: 19,000 Combo - 45 Emblems - 35:00 Clear
Carnage: 19,000 Combo - 45 Emblems - 35:00 Clear
Mysterio: 19,000 Combo - 12 Emblems - 20:00 Clear

Those are the scores to beat for each level but keep in mind you do NOT have to do all at once per level. You can do multiple runs like say beat sandmans once for collactables platinum then play it again to get speed and combos platinum.

This is for getting 12 platinum medals in the game. You can get a platinum overall medal for each level, and there are 13 levels in the game (tutorial does not count), so you have one level as "buffer" that you can skip.

Platinum is only attainable on the hard difficulty setting. Note that to get an overall platinum for a level you need to platinum three separate criteria: combo, collectables, and time. Note however (and this is key) you do NOT have to get all three in one go, you can do each in 3 separate playthroughs of a level. Personally I went for combo & collectables on my first playthrough of most levels, and then did time on a 2nd playthrough.

For combos (**edit see note at end of solution**), generally once you have it the eight legged fury combo (hold Y to put a guy in the air, then X X Y X on the guy in the air) will score huge points. Additionally (and much easier), milking the Y Y Y combo works for most levels. Basically for the most part I just went through killing as much as I could using the Y Y Y combo and for most levels that was enough. There seems to be a bit of controversy over how exactly combo score is calculated, but I can confirm milking the same combo for an entire level DOES work. Some of the Noir levels are a bit tricky for this as there's very little combat (hitting B for takedown on a guy doesn't affect combo score). For each level, the required combo score for a platinum is 19,000.

Collectable platinums are generally very easy, if you turn on spidey sense (up on the D-pad) you will see a yellow aura around spidey emblems, so just get the required amount as mentioned below for each level. Note that hidden spiders do NOT count for the collectable plats, only spider emblems. Some of the 2099 levels can be hard to spot the emblems on, so just take your time and be thorough (hence the suggestion to do time on a separate playthrough).

Time runs are the trickiest. Most levels aren't too bad for time requirements, each level is outlined below. Note that there is one very important trick to exploit on time trials: if you screw up a section you can quit to the main menu and pick continue level and you'll resume from the last saved checkpoint (the only exception is the Mysterio level, which you have to do in a single run, there are no checkpoints). This is *critical* for many of the time trials, as it makes them *much* easier. As such I've pointed out for most of the levels (I didn't start making notes until partway through Act 1) what my time was on my run for each checkpoint in the level. This can give you an idea if you're doing reasonably well or if you're better of quitting to the main menu and resuming a section. Probably the hardest time trial was actually Electro (surprisingly since it came early). Mysterio (if you choose to do this level) is another tough one as you can't resume from a checkpoint.

The specific criteria for each platinum is outlined below, along with my checkpoint times (again, combo scores are 19,000 for every level):

Kraven (par time 20:00, 35 emblems)

Hammerhead (par time 25:00, 20 emblems)

Hobgoblin (par time 20:00, 25 emblems)

Electro (par time 20:00, 45 emblems):
1st checkpoint (before saving workers) 1:24
2nd chekcpoint (after saving workers) 2:28
3rd checkpoint (after 1st electro battle) 4:41
4th checkpoint (before dam) 5:24
5th checkpoint 6:32
6th checkpoint (before 2nd electro battle) 7:27
7th checkpoint (after 2nd electro battle) 9:52
8th checkpoint (before saving workers) 12:13
9th checkpoint (before last battle) 16:07
end: 18:37

Sandman (par time 25:00, 50 emblems):
1st checkpoint (after 1st battle with Sandman) 2:39
2nd checkpoint (after 1st 3 sand guys & entering 1st outside area) 3:20
3rd checkpoint (at start of 1st mineshaft) 4:51
4th checkpoint (after 2nd battle & upon entering 2nd outside area) 7:50
5th checkpoint (after finishing 2nd outside area & entering indoor area) 11:44
6th checkpoint (after mineshaft, and at start of final sandman battle) 15:51
end: 18:10

Scorpion (par time 30:00, 60 emblems):
1st checkpoint (after using egg to melt 1st door) 2:03
2nd checkpoint (after saving 2 scientists & opening door) 5:36
3rd checkpoint (before 1st scorpion battle) 6:42
4th checkpoint (after 1st scorpion battle) 8:27 (under 2 mins is a challenge)
5th checkpoint (at big battle in front of door for 4 min challenge) 12:09
6th checkpoint (at top of tower where you get the "On Thin Ice" challenge) 15:29
Note the above section is timed, you always have about 2:30 before scorpion shows up. It *might* be worth just hiding in an alcove for the time.
7th checkpoint (at start of last scorpion battle) 17:59
end: 22:08

Deadpool (par time 35:00, 105 emblems):
1st checkpoint (after 1st set of cameras destroyed) 1:47
2nd checkpoint (after 2nd set of cameras destroyed, before 1st deadpool battle) 4:57
3rd checkpoint (after 1st deadpool battle) 7:25
4th checkpoint (after steam tunnel) 7:56
5th checkpoint (after 1st set of cameras destroyed) 9:43
6th checkpoint (after 3rd set of cameras destroyed & start of 2nd commercial break) 13:21
7th checkpoint (before "surfing" section where "Staying Dry" challenge is awarded) 15:28
8th checkpoint (at start of last Deadpool battle) 16:43
end: 19:46

Juggernaut (par time 35:00, 60 emblems):
1st checkpoint (after 1st battle) 2:26
2nd checkpoint (at start of 1st juggy throwing area after 1st shield guy battle) 6:56
3rd checkpoint (after breaking wall & entering room with lots of gunners) 9:28
4th checkpoint (after cutsscene of Juggy in tunnel) 10:30
5th checkpoint (after saving 3 workers & going past flaming tunnel) 11:37
6th checkpoint (at last battle with Juggy (after the punching scene) 12:49
end: 16:23

Goblin (par time 35:00, 20 emblems):
1st checkpoint (after saving 1st set of hostages) 5:12
2nd checkpoint (after entering tent after 1st goblin fight) 5:48
3rd checkpoint (after leaving tent after 2nd goblin fight) 8:46
4th checkpoint (after escaping funny mask room) 11:46
5th checkpoint (after drugged fight, then climbing wall, and entering tunnel) 13:24
6th checkpoint (after 3rd goblin fight) 14:06
7th checkpoint (at start of final goblin fight) 14:34
End: 20:47

Doc Ock (par time 35:00, 45 emblems)
1st checkpoint (after 1st tunnel section & cutscene after) 0:36
2nd checkpoint (after 1st group of enemies) 2:08
3rd checkpoint (after beating 1st arm) 3:50
4th checkpoint (after leaving 1st core area) 6:42
5th checkpoint (after enemies in front of door) 7:52
6th checkpoint (after 1st small room where self-destruct guys beam in) 8:54
7th checkpoint (after saving 3 scientists hidden behind walls) 13:09
8th checkpoint (after leaving small "ambush" room where Doc Ock won't shut up) 14:15
9th checkpoint (after beating 2nd arm) 15:01
10th checkpoint (after finishing 2nd "ambush" room) 15:42
11th checkpoint (after reaching hologram) 17:52
12th checkpoint (after escaping with scientist past flame wave) 18:45
13th checkpoint (at entering final doc ock battle) 18:58
14th checkpoint (after 1st part of dock ock battle) 20:18
end: 22:14

Carnage (par time 35:00, 45 emblems)
I found carnage to be tough to get platinum combo on, so I instead did Mysterio.

Mysterio (par time 20:00, 12 emblems)
Note there are no "exitable" checkpoints in this level. You have to do the entire level in one go. For the collectables, there are 6 in the first (Noir) area, and 9 in the final (Amazing) area (look up on the tops of the archways)
My time: 16:26

*** -- notes about combo score. Personally I milked the YYY combo on most levels and found that was sufficient to score over 19K on most levels. Having said that, others (most notably EMPATH1C MIM1C in the comments) pointed out a common theory that combo score is based upon not only getting a long combo string, but also varying the combo's you use. The manual for the game only mentions the following (rather vague) comment about combo score:

"Combo Rating -- Performing various combo types and long combo strings during combat will earn you a higher medal"

So put another way, you can try the YYY combo, but YMMV, so feel free to try varying the combos as well, K? :D

Just to add to this, I wanted to say that when you are on the Goblin level and you get to the room with the clown faces, it can be tricky to find which door is the correct door. You want to look for the door that has one of the eyes twitching like the rest and the other eye twitching at twice the other eyes speed. It may take some time to figure out but you will notice it once you see it in front of you.

*ELECTRO COMBO RATING SOLUTION*
Okay so people have been having troubles getting a high combo rank in the Electro level. My highest combo score is 22 007. This is how I got it; okay what I did was I only used the Y Y Y strong attack throughout the whole level...... bosses and everything! Not once did I use rage. Even for the 1 hit enemies(blue,green,red creatures) I used the Y Y Y strong attack. I never even touched the X button once. Follow this and you will 100% get platinum on the Combo Rating. Good Luck and enjoy! :) :)