Hats off to whoever came up with that way of implementing the limitation. That's so clever to actually have the score be your platform.
The opening cutscene is very well drawn and I respect the ambition in having a series of fully-drawn images to form a cutscene. There being no music feels weird, but I think the drawing makes up for it a lot.
The Flappy Bird-like controls were pretty well implemented.
However the enemies, specifically the dolphin and the bird, felt a little bit inconsequential. They subtract points which while that does hinder your platform, if you go from, say, 30 to 28, that seems like nothing. An enemy that fully resets your score would've been nice, though, that may also teeter it into rage game territory.
But, it's a testament to this game's overall quality that the enemies are the only real criticism, and even then a very very very nitpicky one, I have of it! Very solid game! And I can't say enough about that clever usage of the limitation.