Hey! Thanks for including my game in your stream! Regarding aerials, you have to jump over the boat. I have just added this in the game description. Originally, to do aerials you just had to jump out of the water and land back in (like you tried) but I found it too easy (for me) while testing and added an additional condition. That was before I realised everyone else had troubles with the controls! haha. Regarding the second mode.... there's some instructions on the screen when the game ends. :)