Plot hole: Bratt's bubble gum is strong enough to withstand projectiles like bullets, lasers, and even strong enough to carry a tanker into the sky but can't withstand Gru's body weight when he crashes into it before "happy birthday Dan".
Despicable Me 3 (2017)
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Directed by: Pierre Coffin, Kyle Balda, Eric Guillon
Starring: Steve Carell, Steve Coogan, Kristen Wiig, Jenny Slate
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More mistakes in Despicable Me 3
Lucy Wilde: Agents Grucy are closing fast!
Gru: Yes! Wait, whaa? What did you call us?
Lucy Wilde: Grucy. You know, Gru and Lucy mushed together - Grucy.
Gru: I like it, but not a lot. I don't like it.
Trivia: When the beach-goers panic on seeing the appearance of Balthazar Bratt's robot, you can hear the Wilhelm scream.
More questions & answers from Despicable Me 3
Answer: I'm going to assume you haven't watched the entire movie. There is a scene in the movie when all minions abandon Gru due to Gru not being willing to return to his prior lifestyle of being evil and committing crimes.
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