It looks like this particular game has plenty of cheat codes to be activated within the game, after reviewing the relevant data files which contains the cheat codes I discovered that each cheat has multiple codes.
This is a compiled list of some of the codes and due to copyright issues i cannot post full list of codes.
To activate these cheats, do the following:
Pause the game, select the “Extras” option, and choose the “Enter Code” selection. Then, enter one of the following codes to activate the corresponding cheat function:
|Emmet (Old West)||NIHX2B|
|Larry The Barista||K7TDXJ|
|Robo SWAT (Laser)||GFH2F8|
|Angry Kitty and Construction Pants (Emmet’s Construct-o-Mech)||6LK78NN9 or HVLH63VL|
|Blacktron Fan and Musical Pants (Rescue Reinforcements)||6LKMNDHR or HVLLRX6R|
|Johnny Thunder and Super Secret Pants (Super Secret Police Dropship)||6LK3FRL6 or HVL4TQT4|
|Robo Pilot and Astro Pants (Benny’s Spaceship, Spaceship, SPACESHIP!)||6LK3RRY4 or HVL4TB94|