I like the idea but the level design for me ruins it. You have to make lots of blind shots, no one tells you how different types of people behave. Forcing you to always shoot all of your bullets before using the pink one is just annoying bc you can beat almost whole level then fail last puzzle but you know how to do it so you go again. And then you waste 10 minutes figuring out a way to shoot all of your bullets in a way that won't kill you nor any people you need to transfer to later. Personally I only got to level with sentry and after lots of tries I gave up. I could destroy sentry but then I couldn't make the jump, I wasn't jumping high enough. I could take blind shot but it wasn't consistent strat but I thought I figured out how one other type of person worked but I guess I wasn't right. Game doesn't give you information you need and it wastes your time on pointless shooting in wall at different angles only to find out that bullet bounced 3 times from walls you couldn't even see and killed enemy you needed to transfer to. Also on second level I didn't even try to jump over the pit with sniper bc game was telling me right in face that it's too far, so I took huge number of blind shots before I decided I'd try to jump when after some time I noticed that he moves a bit faster than other guys.
Overally, very good idea but it could've been realized much better