Thanks! I agree some prompts to teach the player would be helpful and given more time I would have made some sort of proper tutorial. The colliders were my bane, I have some ideas on how to fix it but the way they're behaving I believe has something to do with how the player moves not the colliders themselves. I need to look into this otherwise I'll keep making the same mistake.

Hey Golly thanks for trying, one of the screenshots actually shows the solution but basically Pink doesn't like water but can fly and Blue can't fly, Pink has to give him a boost some times, take a look at the controls page how to control the flying. I'll check out your game and leave some feedback :)