1) the only important part here is to have something below them - its really just there to make the key more visible
2) for this to work I really should have planned for it before making the guns and bosses ๐ค
I sort of had something like this planned: originally you would get the bloop gun from the big bloops corpse - but even this brought the problem of: where would you get the gun if you start with a level select? like would you start the levels afterward the boss with this gun ?
(I guess Prey pulled it off greatly - but I just don't have that kind of bravado)
overall I feel this idea of combining guns from bosses would make more sense in an open world game or rpg where you can go anytime anywhere - or at least some megamanish ordeal where you can choose which boss to tackle first ๐ค
(I also remember SiN did something like this but that was also a linear game and you had to find the parts in secrets and it was really easy to miss one)