This is doing some interesting things, i cant comment on story since that isnt my thing but gameplay wise its a cool idea to have two controllable characters and doing various things. Lots of potentia (it takes two but single player). My main feedback at this point is that there's wwaaaaaaaaayy too much stuff being introduced too quickly, there's too many buttons, too many pictures and tutorials. I think in this case you're better off explaining in text what stuff means than icons and stretch it all out. Make smaller rooms where you teach a mechanic and repeat 1-2 times. And merge buttons, e.g. character switching shouldnt be two buttons.
Viewing post in Project Nortubel (Still WIP) jam comments
It's technically my first game and with one lots of ambition, because I wanted to use a variety of characters.
Part of why the game may feel bloated is because there's a lot of levels and different worlds that I wanted to give the idea of a "fake crossover".
So some stuff is the way it is because of my dev skills.
The idea of switching characters was in case the regular "command" system was still difficult to players and it using 2 buttons is in case a single wasn't good enough in some cases.
At some point, there were more texts in the tutorials but people said they'd make the game feel slower and take more time, so I replaced most with images.