Unlock Secret Bonus Level: Hell
Enter Right, Right, B, X, Left, Up, Down quickly at the main menu & you'll hear a sound to confirm it was entered correctly.

Unlock Concept 4: 'Ultimate Fantastic 4' Setches (Marvel)
Purchase from 'Upgrades Menu' 1000pts

Unlock Concept 3: Character Pencil Sketches (Marvel)
Purchase from 'Upgrades Menu' 1000pts

Unlock Concept 2: Boss Monster Drawings
Purchase from 'Upgrades Menu' 1000pts

Unlock Bonus Mission: Latveria 2
Beat the game on Hard

Unlock Concept 1: Enemy Drawings
Purchase from 'Upgrades Menu' 1000pts

Unlock Bonus Mission: Latveria 1
Beat the game on Medium

Unlock Concept 5: 'Ultimate Fantastic 4' Comic Panels
Purchase from 'Upgrades Menu' 1000pts

Unlock Ultimates 1: 'Ultimate Fantastic 4' Pannel #1
Purchase from 'Upgrades Menu' 2500pts

Unlock Ultimates 2: 'Ultimate Fantastic 4' Pannel #2
Purchase from 'Upgrades Menu' 2500pts

Unlock Ultimates 3: 'Ultimate Fantastic 4' Pannel #3
Purchase from 'Upgrades Menu' 2500pts

Unlock Ultimates 4: 'Ultimate Fantastic 4' Pannel #4
Purchase from 'Upgrades Menu' 2500pts

Unlock Ultimates 5: 'Ultimate Fantastic 4' Pannel #5
Purchase from 'Upgrades Menu' 2500pts

Unlock Covers 1: Classic 'Fantastic 4' Cover #1
Purchase from 'Upgrades Menu' 2500pts

Unlock Covers 2: Classic 'Fantastic 4' Cover #2
Purchase from 'Upgrades Menu' 2500pts

Unlock Covers 3: Classic 'Fantastic 4' Cover #3
Purchase from 'Upgrades Menu' 2500pts

Unlock Covers 4: Classic 'Fantastic 4' Cover #4
Purchase from 'Upgrades Menu' 2500pts

Unlock Covers 5: Classic 'Fantastic 4' Cover #5
Purchase from 'Upgrades Menu' 2500pts

Unlock Covers 6: Classic 'Fantastic 4' Cover #6
Purchase from 'Upgrades Menu' 2500pts

Unlock Bios 1: Biographies of the Fantastic 4
Purchase from 'Upgrades Menu' 2000pts

Unlock Bios 2: Biographies of the classic Fantastic 4 villains #1
Purchase from 'Upgrades Menu' 2000pts

Unlock Bios 3: Biographies of the classic Fantastic 4 villains #2
Purchase from 'Upgrades Menu' 2000pts

Unlock Bios 4: Biographies of original 'Fantastic 4' enemies #1
Purchase from 'Upgrades Menu' 2000pts

Unlock Bios 5: Biographies of original 'Fantastic 4' enemies #2
Purchase from 'Upgrades Menu' 2000pts

Unlock Interviews 1: Michael Chiklis (The Thing) Interview
Purchase from 'Upgrades Menu' 5000pts

Unlock Interviews 2: Loan Gruffudd (Mr. Fantastic) Interview
Purchase from 'Upgrades Menu' 5000pts

Unlock Interviews 3: Zak Penn & Marty Signore (writers) Interview #1
Purchase from 'Upgrades Menu' 5000pts

Unlock Interviews 4: Chris Evans (Human Torch) Interview
Purchase from 'Upgrades Menu' 5000pts

Unlock Interviews 5: Jessica Alba (Invisible Woman) Interview
Purchase from 'Upgrades Menu' 5000pts

Unlock Interviews 6: Zak Penn & Marty Signore (writers) Interview #2
Purchase from 'Upgrades Menu' 5000pts

Unlock Interviews 7: Julian McMahon (Dr. Doom) Interview
Purchase from 'Upgrades Menu' 5000pts

Unlock F4 Secret 1: Stan Lee Interview #1
Collect 9 F4 Icons

Unlock F4 Secret 2: Stan Lee Interview #2
Collect 13 F4 Icons

Unlock F4 Secret 3: Developer Interview #1
Collect 22 F4 Icons

Unlock F4 Secret 4: Stan Lee Interview #3
Collect 26 F4 Icons

Unlock F4 Secret 5: Stan Lee Interview #4
Collect 29 F4 Icons

Unlock F4 Secret 6: Developer Interview #2
Collect 33 F4 Icons

Unlock F4 Secret 7: Stan Lee Interview #5
Collect 35 F4 Icons

Unlock arena fight stages:
Guard Granny Level - Find 31 F4 Secrets
Survival Killing Stage 7: SHIELD Arena - Find 28 F4 Secrets
Survival Killing Stage 6: Elevator Arena - Find 25 F4 Secrets
Survival Killing Stage 5: Horus Arena - Find 20 F4 Secrets
Survival Killing Stage 4: Tikal Arena - Find 7 F4 Secrets
Survival Killing Stage 3: Underground Arena - Find 4 F4 Secrets
Survival Killing Stage 2: Barge - Find 2 F4 Secrets