Thanks Cirevam, that's ideal.
I did all the textures for the dirt/ground and rocks, there were some stock soil and rock images used but my method for the various types of walls, was to make a 3D scene with a pile of boulders/minerals and render that out to an image, then take into photoshop and make it into a repeating tile. That way the lighting would be consistent across all the textures.
I'm pretty sure we had to use existing Lego pieces for anything made out of Lego, they did of course make us some bespoke pieces like the rock monster and openable boulder, but Lego designed those without any input from us.
I only worked on the cut scenes for Lego Racers not the game itself, we did have a Rocket Racer minifig with his car in the studio, but I think he was a standard production version.
Lego had already made the other characters/minifigs, when we realized we need a captain/leader, I had an idea for him and we tried him out. I had an issue back then with all the disabled or scarred characters, always being the 'bad' guys, I felt they were being demonized just for being different, so I gave chief the 'robot' arm to try and address that balance... it made me feel better anyway
I know that we did make up some sets that were needed in-game, drilling machines and apparatus etc., out of existing Lego parts, and some of these may have made it to physical Lego sets.
I remember doing the Lego Chess cutscenes, lot of fun. I think we had a fair amount of free rein to do the scenes we wanted, the only restriction I recall was, NO FIRE! Lego being rather paranoid about the flammable nature of their product.