Had a great time playing this game. Controlling the bird is kind of addicting and puzzles weren't too hard nor too easy to solve, great balance to my taste, and is friendly for non-hardcore platformer fans, like myself.
I'm sorry to hear that typing words didn't work for you.
I'll try to explain a mechanic from a technical perspective, maybe that'd help:
When player spawns, you receive a word you need to type, letter by letter, without any mistyping (cause otherwise it will be counted as a mistake/error and you will be penalized) AND you should do that before the end of a current floating block you running on, cause otherwise player will fall off the floating block as well.
Once you collect 2 penalties for mistyping, player will fall off into the space.
In case if you have typed current word correctly, you then will be transited into another white floating block with a rotation (LEFT/RIGHT) or jumping over (JUMP).
Love it! This game is not that casual at first glance, but once you understand how it works and a rhythm of the game, you're getting even more joy playing it.
