Go to the Extras section, then to Archives to purchase the following:
Match Boost - 2x XP for 5 matches - One Access Card to unlock (Requirement Level 5)
Match Boost - 3x XP for 10 matches - 3 Access Cards (Requirement Level 10)
Match Boost - 4x XP for 25 matches - 5 Access Cards (Requirement Level 25)
Match Boost - 5x XP for 50 matches. - 10 Access Cards (Requirement Level 50)
Panel A1 - Injured Battle Mode - One Access Card to unlock
Panel A2 - Countdown Battle Mode - One Access Card to unlock
Panel A3 - Speed Run Battle Mode - One Access Card to unlock
Panel A4 - Help From Above Battle Mode - One Access Card to unlock
Panel A5 - Fully Charged Battle Mode - One Access Card to unlock
Panel A6 - Hero Card Portrait Pack #1 - Character Portrait Pack #1 - One Access Card to unlock
Panel A7 - Hero Card Portrait Pack #2 - Character Portrait Pack #2 - One Access Card to unlock
Panel B1 - Unstoppable Battle Mode - One Access Card to unlock
Panel B2 - Combo Heaven Battle Mode - One Access Card to unlock
Panel B3 - Mirror Match Battle Mode - One Access Card to unlock
Panel B4 - Sidekick Battle Mode - One Access Card to unlock
Panel B5 - Impossible! Battle Mode - One Access Card to unlock
Panel B6 - Hero Card Portrait Pack #3 - Character Portrait Pack #3 - One Access Card to unlock
Panel B7 - Hero Card Portrait Pack #4 - Character Portrait Pack #4 - One Access Card to unlock
Panel C1 - Random Fighter Battle Mode - One Access Card to unlock
Panel C2 - Mystery Battle Mode - One Access Card to unlock
PanelC3 - Give and Take Battle Mode - One Access Card to unlock
Panel C4 - Full House Battle Mode - One Access Card to unlock
Panel C5 - The Max Battle Mode - One Access Card to unlock
Panel C6 - Hero Card Portrait Pack #5 - Character Portrait Pack #5 - One Access Card to unlock
Panel C7 - Hero Card Portrait Pack #6 - Character Portrait Pack #6 - One Access Card to unlock