imagine you could get a secret ending if you use meteor/big shot on sansfield when he just went to sleep
nope, there is no secret ending there. phase 1 auto transitions to phase 2 when garfield is low HP, and will remain at phase 2 until he is full HP. then he goes into his final phase
I cheched. It is programmed that Sansfield can't have his HP reduced till the last phase
Another words: Plot Armor.
