Rupert the Tyrannosaur

This is an intermediate tyrannosaur, one of my first satisfactory 22.5 degree designs that uses "Y" molecules. It is a fun model to fold and not too hard. Experience with 22.5 designs (besides traditional ones) is recommended. Knowledge of open sinks, reverse-folds, squash-folds, etc. will also be advantageous. Six inch kami is suitable, but bigger paper may be easier for some.