4:50 - Honestly, he was technically helping you out even if you instantly started running. Since he squashed you during a flood, Baldi couldn't see you under the water and ran the other way after checking the elevator you hit. At least that's what I think happened. Basically, he's like Playtime mixed with a less lethal Baldi that can neutralize most characters, including you. He runs up at you from a distance like most characters, stops for a bit, then pulls out 2 signs for a bit. You have to press the green one with the circle with good *reflexes* if you don't want him on your bad side. If you run away too early, he runs off to his doctor's office to grab a hammer and start smacking anything and anyone in his path. If he smacks the player, you can no longer pick up items since you are too short and can't look up, but are allegedly invisible to any character during a flood due to your size. If he smacks most characters, they can't collide with you. Baldi can't end your game for example at 9:25.
It’s interesting. While most characters are either 3d models projected into 2d (First Prize is full 3d) characters or just 2d digitally drawn characters, Dr. Reflex is made with Clay, and he, like First Prize, has a front, side, and back.
There's just something about how he runs like a Wallace and Gromit character (Mostly due to how he is made out of clay). And how, because he is a 3D turned 2D object, he has different angles you can see him at. Let me set the scene for this one, on other videos, you can see the player following Dr. Reflex from a distance. Dr. Reflex turns a corner, but stops halfway, then slowly turns with the 2 frames they have to stare *directly* at the player. Then they of course turn around, doing that Wallace sprint, going "Thiiiiiiii-", usually causing a fear reaction in the player as they run off into some other hallway or classroom to hide.