TMNT: Smash-Up

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Button Code Unlockables

Input the following codes whilst in the "Bonus Content" menu.
Code Effect
U L D R U D L U L L 4 Turtle alternate costumes
Up,Up,Down,Down,Down,Right,Up,Left,Right,Left Unlock Ninja Rabbid and the Underground Stage
Up, Down, Right, Up, Down, Right, Left, Up, Right, Down Unlock Shredder and his alternate costume, Cyber Shredder
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Artwork and Media

These can be done on any difficulty.
Unlockable How to Unlock
4Kids Illustration Art Complete Arcade Mode with everyone
Cartoon Concept Art Complete all figures in the trophy room
Cartoon Trailer Earn 333 Shells
Comic Book Covers Earn 777 Shells
Early Concept Art Beat Survival Mode once with any character
TMNT 2007 Artwork Beat Survival Mode with Nightwatcher
TMNT: Smash up Trailer Earn 111 Shells
Unproduced TMNT 4 Concept Art Beat 40 Missions in Mission Mode
Video Game Concept Art Earn 555 Shells
WB Trailer Beat Survival Mode with all characters

Contributed By: SpitfirexXxXx.
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Stages

This can be done on any difficulty.
Unlockable How to Unlock
Enemy Base Complete 25 VS Mode matches or beat 10 mission in Mission Mode
Garbage Dump Complete 125 VS Mode matches
Space Lab Clear all 51 Mission Mode missions
Warehouse Complete 95 VS Mode matches
Western Town Complete 45 Vs Mode Matches or beat 30 missions in Mission Mode

Contributed By: SpitfirexXxXx.
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Trophies

This can be done on any difficulty.
Unlockable How to Unlock
Large-Size Trophy Creation Complete 150 VS Mode matches
Medium-Size Trophy Creation Complete 50 VS Mode matches

Contributed By: SpitfirexXxXx.
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Unlock Alternate Costumes

Unlockable How to Unlock
April's Alternate Costume Beat Arcade mode as April on any difficulty without using a continue.
Casey's Alternate Costume Beat Arcade mode as Casey Jones on any difficulty without using a continue.
Foot Ninja's Alternate Costume Beat Survival mode as Foot Ninja on any difficulty.
Karai's Alternate Costume Beat Survival mode as Karai on any difficulty.
Splinter's Alternate Costume Beat Arcade mode as Splinter on any difficulty without using a continue.

Contributed By: CHAOSGAMMA and cjyoungjr.
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Unlock Characters

Unlock the following characters
Unlockable How to Unlock
Foot Ninja Choose To Unlock After Beating Arcade Mode
Fugitoid Beat All 51 Challenges
Karai Choose To Unlock After Beating Arcade Mode
Nightwatcher Choose To Unlock After Beating Arcade Mode
Raving Rabbid Finish 120 Vs. Matches
Shredder Choose To Unlock After Beating Arcade Mode
Splinter Rabbid Finish 90 Vs. Matches
Utrominator Choose To Unlock After Beating Arcade Mode