Glad you liked the other mode. I wanted to add something to make the game not a straight copy of flappy bird and also make sense in the ocean but found it might be too difficult for some people so kept the normal flappy bird mode in.
Oh that's what I meant. My bad on the poor wording. The 'swim mode' can be difficult when you have to go from the very top to the very bottom or vice versa. Cancel too soon or too late and you won't make it. I died to it a few times. It gets more difficult later on as the spawn rate increases after 25s until 90s.
Nevertheless, glad you had fun.