Cool game! The idea for the game was pretty unique, with the swapping between characters on death, and the character sprites and animations for the rooster and the enemies was great! It's also impressive that you made a procedural game in 3 days too!
The game did confuse me quite a few times though. In the tutorial section, it says that the rooster can double jump, but I was still the green thing and I could double jump anyway. And I wasn't really ever sure how the batteries worked. They seemed to stay the same as I went from level to level, so I thought it was just a "you must have this many to pass" sorta thing. But some times my amount of batteries would just reset seemingly at random. I also am not sure what the point of having the blue bar to kill yourself is since it is quite easy to die in these levels. The green guy felt kinda bad to play since he took so long to shoot, I feel like if you have a character with that long of a shooting cooldown, you need to give him a visible recharging animation so I don't just think the character is unresponsive.
Also, I ran into an unbeatable level where every section to get down in the level was blocked off.
But overall well done, fun game!