Like Jenga, take it in turns to remove one (command) block at a time! Rules After each turn, run the program and the two dinosaurs must still 'say' the same numbers, but nothing else matters (movement, costume changes, location etc). The winner is the person who's removed the most blocks but still has the dinosaurs saying the same numbers!
Dr Chips - I heard about this idea on Jane Waite's Diving Deep course but can't recall who mentioned it. Thanks to whoever it was!