Revealing mistake: When Bond is telling Zoe Nightshade, "One thing troubles me, how can I be sure you're the genuine article?" Zoe puts her hands on Bond's chest. Her fingers clip into his character model like she's putting her hand inside him.
Continuity mistake: After Zoe is killed, Bond and R are kneeling beside her and there is nothing behind where R is as far as vehicles go. Then moments later, Bond jumps up and goes to get into his BMW and suddenly it's right behind R. Also, the shipping containers in the background change colours. The position of Zoe's legs also changes slightly.
Trivia: This game started out as being the 4th version and PC make of The World is Not Enough. However, at some point during development, that decision was changed and they overhauled everything they had created to make this a fully original James Bond game while the other 3 versions of TWiNE continued for the N64, PS1 and Game Boy Color.